Read The Fallable Fiend Storyline:
THE PERFECT SERVANT (NOT!)He looked like a cross between a dragon and a catfish, and he could bend iron bars into pretzels with a flick of his hand. But what Zdim the mild-mannered demon really was, was a scholar of logic and philosophy. That's why when Zdim was drafted for a year's servitude on the mortal plane he felt that a monumental administrative error had been made.And even though Zdim resolved to be absolutely obedient and to do exactly what he was told, the wizard who employed him soon agreed…Pages of The Fallable Fiend :