Research Alpha
James H. Schmitz & A. E. Van Vogt
Earth's Last Fortress
A. E. Van Vogt
Itself!
The Twisted Men
Centaurus (1)
Fulfilment
The Silkie
The Silkie (1)
The Replicators
The Players of Null-A
Null-A (2)
The Ultra Man
Moonbeast
Pendrake (1)