The Book of the Lion: Henry Gamadge #13

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 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.