The twenty-third book in the hugely popular Peter Decker and Rina Lazarus series from New York Times bestselling author Faye Kellerman

It's been almost a year since Greenbury's last murder. Detective Peter Decker has been enjoying the slower pace of life in upstate New York ... until two kids find a dead body in the woods.

Identifying the body takes Decker and his former partner Tyler McAdams into the cryptic world of mathematics at Kneed Loft College - a sphere of scheming academics, a beguiling student who sets her sights on McAdams, and a dangerous underworld.

It will take all of Decker's wits and McAdams's intellect to solve a twisted tale created by depraved masterminds, and then make it out alive...