Amazon.com (ISBN 0399151443, Hardcover)

When four young employees of Yosemite National Park disappear, ranger Anna Pigeon goes undercover as a waitress at the Ahwahnee Lodge to investigate. Living in the staff dorm, she soon discovers there's a connection between at least one of the missing girls, a crashed plane containing a fortune in drugs, and the outsiders who've moved into the tent cabin last occupied by a skilled climber who's also among the disappeared. The first attempt on her life doesn't scare her away, but the second is nearly fatal, and Anna's harrowing escape keeps the tension ratcheted up until the denouement. As usual, Nevada Barr turns in a well-paced thriller featuring a compelling protagonist and a strong cast of minor characters, but it's her brilliantly etched landscapes that bring readers back to this popular series again and again. High Country is Anna's thirteenth outing, and it's one of her strongest. --Jane Adams