All murder mysteries follow a simple set of rules.
In the 1930s, Grant McAllister, a mathematics professor turned author, worked them out, hiding their secrets in a book of crime stories.
Then Grant disappeared.
Julia Hart has finally tracked him down. She wants to know what happened to him.
But she's about to discover that a good mystery can be murder to solve . . .
**Winner of the Capital Crimes Reader Award for Debut Book of the Year**
SHORTLISTED FOR THE GLASS BELL AWARD AND THE BARRY AWARD FOR BEST FIRST NOVEL