Heechee Rendezvous
Frederik Pohl
Beyond the Blue Event Horizon (Heechee Saga)
Star of stars
Gateway
The Hated
Pythias
Beyond the blue event horizon
Heechee rendezvous: a novel
Homegoing
The age of the pussyfoot
The Far Shore of Time
The World at the End of Time
The Day of the Boomer Dukes
Day Million