"Can we get back to the original topic?" said the Chief testily.
"Certainly," said Henssen. "Where was I?"
"Forward chaining," said Kersdorf.
"Ah," said Henssen. "Well, forward chaining is essentially a way of generating conclusions by applying rules, either formal or heuristic, to a given set of facts. If the bank customer pulls a gun and demands money and there is no suggestion that this is a security test, then a reasonable deduction is that he is a bank robber."
"And who said computers couldn’t think?" Charlie von Beck rolled his eyes. He was back in his bow tie and velvet suit.
Henssen ignored the interruption. "The point is, forward chaining is only one way to go about things. You can also use backward chaining. In that situation you could assume someone was a bank robber and then work back to see what facts supported that conclusion. It's an ideal way of checking out a suspect and ties in with the less rational elements of our human makeup, like intuition."
The Bear caught Fitzduane's eye and smiled.
"What it comes down to," the Chief said, "is that we have a much more flexible tool here than we seem to realize, and we're not using it to anywhere near its full potential. For instance, it can function in the abstract. Instead of asking, ‘Who do we have on file who has a knowledge of plastique?’ you can ask it, ‘What kind of person would have a knowledge of plastique, and where might he or she be found?’ The machine will then generate a profile based upon its file of data and its knowledge base." He rose to his feet. "Well, there you have it. Take of the blinkers. Try a little creative anarchy. Hit the problem from first principles. Find the fucking Hangman." After an angry look at everyone, he left the room.
* * * * *
Inspired by Katia, who believed that certain foods were good for certain parts of the anatomy, over the next three days the Bear ate a great deal of fish — a luxury in landlocked Switzerland — and, so to speak, kept himself to himself.
He wasn't so much antisocial as elusive. He went places and did things without saying exactly where or what. He made and received phone calls without comment. A series of packages arrived by courier and were unwrapped and examined only when he was alone. He was moderately talkative but only on any subject except the Hangman, and he was maddeningly cheerful.
On the morning of the fourth day Fitzduane, who had been researching variations of Swiss batzi with a little too much dedication the night before, rose at the unearthly hour the Swiss set aside for breakfast only to yawn to a halt in near-terminal shock at the sight of the Bear standing on his head, arms crossed, in the living room. His eyes were closed.
"Morning," said the Bear without stirring.
"Ugh," said Fitzduane. He turned on his heel and stood under a cold shower for five minutes. Toward the end he thought it might be a good idea to remove his robe and pajamas. When he returned to the living room, the apparition had vanished.
Over breakfast the Bear expounded on the merits of fish as a brain food. "Did you know," he said, "that the brain is essentially a fatty organ and one of its key ingredients, a free fatty acid, comes from fish?"
"Ugh," said Fitzduane, and spread butter and marmalade on his toast.
The Bear chewed enthusiastically on a raw carrot and wrinkled his nose at what Fitzduane was eating. "That's no way to start the day," he said. "I must get Katia to draw you up a diet sheet."
Fitzduane poured some batzi into his orange juice. He drank half the glass. "Ugh," he said.
* * * * *
Later that morning, after a detour to the Der Bund office to pick up a bulky file stuffed with press clippings, notes, and photographs, Fitzduane found himself trailing behind the apparently supercharged Bear as the detective hummed his way through the portals, halls, rooms, corridors, and miscellaneous annexes of the City of Bern art museum. The corridor they were in was in semidarkness. Fitzduane wondered about the wisdom of this policy. Perhaps visitors were supposed to rent flashlights. His mind went back to Kuno Gonschior's exhibition of a series of black rectangles in the Loeb Gallery. It had been the first time he had met Erika. It seemed lightyears ago. [(wtf?)]
The Bear stopped his march and scratched his head. "I think I'm lost."
The pause gave Fitzduane the chance to catch up. He leaned against the wall while the Bear consulted his notebook with the aid of a match. He was thinking that if the Bear continued in this hyperactive, hypercheerful mood, it might be a good idea to slip a downer into his morning orange juice before both of them had heart attacks.
There was a long, furious burst of what sounded like automatic weapons fire, and Fitzduane dived to the ground. The section of the wall against which he'd been leaning a split second before fell into the corridor, and a piercing white light shone through the gap in the wall. Fitzduane half expected the archangel Gabriel to make an appearance. Instead, a dust-covered figure clad in a zippered blue overall and carrying a heavy industrial hammer drill in both hands like a weapon climbed through the aperture, trailing cable behind him. He didn't appear to have wings. Head to one side, the figure surveyed the hole in the wall critically and then nodded his head in satisfaction, entirely oblivious of the 9 mm SIG automatic Fitzduane was aiming at his torso.
"Ha!" said the Bear triumphantly. "I wasn't lost after all." He looked down at Fitzduane. "Don't shoot him. This is Charlie von Beck's cousin Paulus, Paulus von Beck. He's a man of parts: the museum's expert in brush technique, a successful sculptor, and I don't know what else. He's also the reason we're here."
Fitzduane made his weapon safe and reholstered it. He still hadn't gotten his shotgun back, and it irked him. He rose to his feet, brushed dust from his clothes, and shook hands with von Beck. "Demolition or sculpture?" he asked. "Or were you just carried away screwing in a picture hook?"
* * * * *
Paulus left them in his office drinking coffee while he went to clean up before going to the restoration studios to examine the contents of the file the Bear had brought with him. When he returned, Paulus had discarded his sculptor image. The overalls had been replaced by a charcoal gray suit of Italian cut with creases so sharp it seemed clear that the art expert kept a steam press in his closet. His silk was hand-painted.
Paulus was older than his cousin. He had a high-browed, delicately featured face set off by a soft mane of wavy hair, and his eyes were a curious shade of violet. He looked troubled. Fitzduane had the feeling that the Bear might have stumbled across more than he'd bargained for. Paulus's demeanor was not that of a dispassionate expert; somehow he was a player.
"Sergeant Raufman, before I answer the questions you have put to me, I would be grateful if you would answer a few points I would like to raise. They are relevant, I assure you."
"The Bear's tone reflected the art expert's sober demeanor. "As you wish. We police are more accustomed to asking questions rather than answering, but I shall do what I can." There was the slightest emphasis on the word police. It was as good a way as any of warning Paulus to think carefully before he spoke, thought Fitzduane.
"Thank you," said von Beck. The warning had been understood. He took his time before he spoke. He straightened a small bronze bust on his desk while he collected his thoughts. He tidied the papers in front of him into an exact symmetrical pile. He cleared his throat. Fitzduane felt like taking a walk around the block while von Beck dithered.
"My first question: Do your inquiries have to do with the recent wave of killings in this city?"
The Bear nodded. "They do."
Von Beck exhaled slowly. "My second question: You have asked me to comment on a certain artist's work. Do you suspect the artist of being involved — centrally involved — with these killings?"
It was the Bear's turn to hesitate. "Yes," he said finally.
"You don't think that he could be involved only peripherally, an innocent victim, if you will?"
"Anything's possible," said the Bear.
"But you don't think so?"
The Bear gave a deep sigh. "No. I th
ink our friend is involved from his toes to the tip of his paintbrush. I think he's a ruthless homicidal nut with a perverted sense of humor, who should be eliminated as fast as possible before he contaminates any more lives. I think you should stop playing verbal tiddlywinks and tell us everything you know or suspect. I'm running out of patience. This is a murder investigation, not some parlor game."
The color drained from von Beck's face, and he looked as if he were going to be sick. "My third question," he said, "and then I will tell you what you want to know: If I tell you everything, can I trust your utter discretion? No leaks to the press, no appearing in open court, no involvement at all, in fact, other than my giving you a statement?"
"This business about priorities," said the Bear. "We have a mass killer on the loose. If I have to parade you around the streets of Bern with a rope around your neck to checkmate our friend, then that's what I'll do. On the other hand, you're a cousin of a trusted colleague. If I can help you, I will. We're after the shark, not a minnow."
Fitzduane broke in. "To be frank, Herr von Beck, I think you have already decided to tell us all you know, and we respect that. It takes courage. But there is something else to think about apart from public duty. Basic survival. Our murderous friend has a habit of cleaning up after himself. He doesn't like to leave a trail of witnesses. They seem to enjoy brief life spans after they have served their purpose. It just might be a good idea to help stop our friend before he kills you."
Von Beck now looked truly terrified. "I know," he said. "I know. You don't have to say any more." The Bear and Fitzduane waited while Paulus von Beck composed himself.
"Before I give you my professional opinion," said Paulus, "I had better explain the full extent of my relationship with Simon Balac. I am a homosexual. Bern is an intimate city where people of similar interests and persuasions almost inevitably tend to know one another. The artistic community is comparatively small. I got to know Balac — everyone calls him Balac — well. Nearly five years ago we became lovers."
"Your being homosexual or even having an affair with Simon Balac is neither here nor there to the police," said the Bear. "Your sex life is your business."
"I'm afraid that is not all there is to it," said Paulus. "You see, Balac is a strong personality with what one might call varied... exotic tastes. He has a strong sexual drive, and he likes diversions. In his company one finds oneself swept along, eager to please, willing to try things, to do things that normally one would not contemplate. He is a brilliant artist, and the foibles of such men must be tolerated, or at least that is what I used to tell myself. If I am to be truthful, I was swept up in the sheer sexual excitement of it all, the tasting of forbidden fruit.
"Balac enjoys women sexually as well as men. He enjoys group sex in all its variations. He likes children, sexually mature children but still way below the age of consent. He likes to initiate, to corrupt. He makes it incredibly exciting. He uses stimulants — alcohol, various drugs — and above all his own extraordinary energy and charisma."
"The von Graffenlaub twins, Rudi and Vreni?" asked Fitzduane.
"And Erika?" added the Bear.
"Yes, yes," said Paulus.
"Hmm," said the Bear. "You'd better tell us all of it. Does Charlie know any of this?"
Paulus shook his head firmly. "He knows I'm gay, of course, but nothing else. He's a good friend and a kind man. I wanted to tell him, but I couldn’t."
"I'm afraid he'll have to know now," said the Bear. "You do understand that, don't you?"
Paulus nodded.
It was midafternoon before they emerged from the museum. While the Bear debated whether to go to satisfy his audibly growling stomach — he had decided he was sick of fish — Fitzduane asked the one question that had been bothering him since von Beck had shown he could walk through walls. "Is it normal in Switzerland to chop up the core structure of the museum in the interest of artistic expression?"
The Bear laughed. "Living art," he said. "Actually there is an explanation. They were knocking down that section of the museum anyway to make way for a new extension, and they thought it might be fun to let artists take part in the process."
"Ah," said Fitzduane.
"No matter how bizarre the event, there is almost always a straightforward explanation. Don't you agree?"
"No," said Fitzduane.
* * * * *
The Chief Kripo had learned to regard the Project K headquarters as a haven. Only there did he have any thinking time; only there was he relatively free of interference from his political masters wanting progress reports; only there could he escape the profusion of foreign antiterrorist agencies that all wanted a piece of the Hangman, doubtless to skin and stuff and hang on their respective bureaucratic walls; only there did any serious progress seem to be made on the case itself, as opposed to the international hunt, which appeared to have become an enterprise in its own right with the objective almost incidental; only there could he avoid his wife and two mistresses, each of whom blamed his now excessively long absences on some relative advance in his affections for one of the others. It was no picnic being Chief of the Criminal Police in Bern these days.
As luck would have it, the Chief was in the main computer room when Henssen finished the computer runs the Bear had requested. He stared at Henssen's screen. Could this be it? Had they got a real answer at last? Could they ship that albatross of an Irishman back to his bogs? Could they think in terms of no Hangman and a nice steady traditional Bernese two corpses a year? Hell, it was going to be champagne time.
The Chief tried to rein in on his hopes. "Are you sure? Absolutely sure?"
"Nothing is sure in this life, Chief," said the Bear, "except death, a strong Swiss franc, and that the rich get richer."
"Convince me, convince us." The Chief included the rest of the Project K team with a sweep of his arm.
* * * * *
Kadar hadn't expected Lodge to be discovered, and he had absolutely no idea how it could have happened. He had been so careful with this personality. He hadn't taken the risks that had characterized his behavior in other guises. How then could it have occurred?
Losing Lodge was worse than the death of a friend. Of course, that was only natural. After all, he was Lodge, wasn't he? There were times he wasn't sure. His Lodge identity represented his one true link with the past, but now he could never use it again. He felt — he searched for a word — orphaned.
Perhaps he was being too negative. His use of a stand-in during the immigration proceedings — a minor actor, now resting permanently under half a meter of concrete in the house in Muri — could give him a way out. The man whose description and photograph they had wasn't Kadar. He could reappear as Lodge and indignantly protest this usurpation of his name. He'd have to do it from another country, or things would get confusing. Still, it could be done. It might work.
No, it was too risky. Well, he'd think about it.
Only two days were left before he was due to leave Bern to commence what he thought of as the ‘active’ phase of the operation. It might be wiser to leave immediately. Then again his plans were made, and he had taken precautions against discovery. It could even work to his advantage.
He checked the temperature probe set into Paul Straub's body. The corpse was defrosting, but too slowly. It would have been handier to have used not water to thaw out Herr Straub, but he wasn't too sure what effect that would have. It was the kind of thing some forensic scientist might pick up. A body destroyed by fire shouldn't really be waterlogged. It shouldn't start off as a block of ice either; it wouldn't burn properly. A scorched outside and entrails cold enough to chill a martini might cause some head scratching.
He turned up the heat. He thought it was rather neat to be using his sauna for the purpose. He could tone up and sweat off some weight while keeping an eye on things. If his experiment with the frozen pig was anything to go by, Straub should be adequately thawed out in about another six to eight hours. That would be just about right. Then
he'd be kept in the large Bosch refrigerator, nicely chilled but on call if required. If he wasn't needed, he could be refrozen and kept on hand for a rainy day.
* * * * *
"It's ironic," said the Bear, "but what pointed me in the right direction wasn't the computerized power of the Nose or old-fashioned police work; it was our Irishman's intuition." He looked across at Fitzduane. "You should have more faith, Hugo.
"Hugo suspected the painter Simon Balac was our man. There was some circumstantial evidence, but it was far from conclusive. Then the computer identified Lodge, and the raid confirmed him, and naturally all our efforts were concentrated in that direction. I had plenty of time on my hands in the hospital, and I wasn't distracted by the details of the hunt." He glowered around him. "You people kept me starved of information."
"For your own good, Heini," said Charlie von Beck, "and on doctor's orders."
"What do doctors know?" growled the Bear. "Anyway, sparked by Hugo's candidate, I got to thinking about the nature of the Hangman and how he operates, and that led me to an intriguing hypothesis: Could Lodge and Balac be one and the same man?"
"Proof?" said the Chief. "But why be greedy? At this stage I'll settle for reasons and an hour alone with him in a police cell."
"Patience. Rubber hoses are un-Swiss. We're supposed to be a logical people. Follow my reasoning, and you'll see how it all fits together. First, let's remember the Hangman's habit of always having a way out. If the authorities hit one of his bases, to things can be virtually guaranteed: the place will be extensively booby-trapped, and an elaborate escape route will already have been planned. The Hangman doesn't fling himself through the fourth-floor window as the police come rushing through the front door and hope to work things out on the way down. No, this guy is prepared for the down side in detail. It's the way he operates. He's a compulsive planner, and he likes to think he has every contingency covered."
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