Read The Book of the Lion Storyline:
It should be a fairly routine job for Henry Gamadge: Examining the papers of a dead poet and playwright with some early promise but not much in the way of commercial success. But it's not so much the life and letters as the death of the author (murdered in Central Park) that interests Gamadge. Add in a dead witness and the odd behavior of the family, and Gamadge decides something criminal is afoot. The New York Times call this "another top-flight Elizabeth Daly story"Pages of The Book of the Lion :