Time Patrolman
Poul Anderson
Time Patrol (2)
The Maze of Bones
Rick Riordan
39 Clues (1)
Clear and Present Danger
Tom Clancy
Jack Ryan (2)
The Planet of Robot Slaves
Harry Harrison
Bill, the Galactic Hero (2)
Incubus Dreams
Laurell K. Hamilton
Anita Blake, Vampire Hunter (12)