9780765300638 | Forge, May 1, 2003, cover price $24.95 |
About this edition: Discovering four strange stones in an underwater cavern, oilman Frik van Alman realizes that their strange properties may solve the world's energy problems, and when the stones are stolen, he and his friends in the Daredevils Club try to recover them.
9780765340252 | Reprint edition (Forge, November 29, 2005), cover price $6.99 |
About this edition: Discovering four strange stones in an underwater cavern, oilman Frik van Alman realizes that their strange properties may solve the world's energy problems, and when the stones are stolen, he and his friends from the Daredevils Club risk their lives in a series of adventures, in a novel featuring the contributions of four popular authors--Kevin J.