ISBN-13: 9781937226596 / Angielski / Miękka / 2016 / 240 str.
"Graham's intriguing third National Park Mystery takes archaeologist Chuck Bender to the Thorofare region of Yellowstone...The threatening behavior of the park's predators is worrisome enough, and the discovery of a murdered researcher lifts threats to a whole new level."
--PUBLISHERS WEEKLY