Robur the Conqueror

Voyages Extraordinaires (Series)

Jules Verne Author
John Gregory Betancourt Translator

The Science Fiction

Megapack (Series)

Robert Silverberg Author
Richard A. Lupoff Author
(2011)

The 4th Mystery

Megapack (Series)

John Gregory Betancourt Author
Rufus King Author
(2016)

A One-Pipe Problem

John Gregory Betancourt Author
(2018)