Journal of a UFO Investigator
David Halperin
Archenemies
Marissa Meyer
Renegades (2)
Origin
Stephen Baxter
Manifold (3)
Heaven's Keep
William Kent Krueger
Cork O’Connor (9)
Gateway
Frederik Pohl
Heechee (1)
Heechee Rendezvous
Heechee (3)
The Annals of the Heechee
Heechee (4)
The Gateway Trip
Heechee (5)
The Boy Who Would Live Forever
Heechee (6)
Beyond the Blue Event Horizon
Heechee (2)
A Home For The Old Ones
Heechee (7)