The Norby chronicles
Isaac Asimov & Janet Asimov
Robert Heinlein
The Puppet Masters
Brains
Jaq Wright
The City At World's End
Edmond Hamilton
Time Odyssey 3 - Firstborn
Arthur C. Clarke
Time Odyssey (3)
Time Odyssey 2 - Sunstorm
Time Odyssey (2)
Time Odyssey 1 - Times Eye
Time Odyssey (1)