When the strange fossil she's discovered had ended up giving her a trip to Mars, Helen Sutter thought she'd gone about as far as any paleontologist would ever go in her lifetime. But when you've also married A.J. Baker, overconfident super-sensor expert for the only private agency in space--the Ares Corporation--and your best friend is a former secret agent who's just signed on as the chief of security for the newly created and already emabttled Interplanetary...

A dinosaur thriller with an international cast, first in a series by the Campbell Award-winning author of The Genius Plague. "Walton has brought hard sci-fi roaring back to life." -The Wall Street Journal