Unseen Powers

Extreme Zone #3

by Mark Sumner

Tortured and separated from Noah, who is being held prisoner by Billie, Harley continues to explore the potential of their psychic powers while struggling to free Noah and her father in the hopes of unleashing the chaos of the Extreme Zone. Original.

Genres: Young Adult, Science Fiction

186 pages, Paperback

First published January 1, 1997

About the author

Sometimes credited as Mark C. Sumner or M.C. Sumner.