Premise: Mystery is a 1990 novel by American author Peter Straub, and is the second installment in Straub's loosely connected "Blue Rose Trilogy". The novel falls into the genre of crime fiction, and was preceded by "Koko" and followed by "The Throat". The book was published by Dutton, won the 1993 Bram Stoker Award and was a 1994 WFA nominee
Hypothesis: He was 52 when he released the novel