Zero-Sum Games

Planet Builders #5

by Robyn Tallis (pseudonym)

When young space adventurer Sean Matthews is brought into Ambora's medical center unconscious, his friends go to explore the scene of the accident. What they find is trouble and danger in the fifth installment of the Planet Builders series.

Genres: Science Fiction, Young Adult

182 pages, Mass Market Paperback

First published February 28, 1989

About the author

Pseudonym for a group of authors. The first six books were overseen by Bruce Coville, who wrote the first book. Sherwood Smith oversaw the last four books (the series was originally supposed to be six, then was expanded)

Mountain of Stolen Dreams
Bruce Coville

Night of Ghosts and Lightning
Debra Doyle and James D. Macdonald

Rebel from Alphorion
Sherwood Smith

Visions from the Sea
Sherwood Smith

Zero-Sum Games
Debra Doyle and James D. Macdonald

Night of Two New Moons
Bruce Coville

Children of the Storm
Mary Frances Zambreno

Horrorvid
Jymn Magon and Bruce Talkington

Giants of Elenna
Sherwood Smith

Fire in the Sky
Sherwood Smith