The Battle of the Labyrinth
Rick Riordan
Percy Jackson and the Olympians (4)
Bake Sale Murder
Leslie Meier
Lucy Stone Mysteries (13)
The Hero of Ages
Brandon Sanderson
Mistborn Trilogy (3)
Ringworld
Larry Niven
Ringworld (1)
Death by black hole: and other cosmic quandaries
Neil deGrasse Tyson