TimeRiders: Gates of Rome (Book 5)

TimeRiders: City of Shadows (Book 6)

TimeRiders: The Doomsday Code (Book 3)

TimeRiders: Day of the Predator (Book 2)

TimeRiders (Book 1)

TimeRiders: The Mayan Prophecy (Book 8)

TimeRiders: The Pirate Kings (Book 7)

TimeRiders: The Infinity Cage (book 9)