Short Synopsis
Aaron Elkins presents Book 14 in the Gideon Oliver Mysteries series.

Full Synopsis
From the Edgar® Award–winning author of Uneasy Relations, starring Professor Gideon Oliver, "a likable, down-to-earth, cerebral sleuth" (Chicago Tribute).

Sailing the Amazon with a group of botanists, "Skeleton Detective" Gideon Oliver is on his dream vacation. But it turns nightmarish when fierce head-hunters narrowly miss killing the group leader, then a deranged passenger kills a botanist and flees. Long-past enmities and resentments—and new ones as well—might explain things. And when a fresh skeleton turns up in the river, Gideon is sure that, in this jungle full of predators, humans may be the deadliest of all.