Paradigms Shift, Worlds Collide!

A daring and resourceful paleontologist uncovers something at the infamous K-T boundary marking the end of dinosaurs in the fossil record something big, dangerous, and absolutely, categorically impossible. It's a find that will catapult her to the Martian moon Phobos, then down to the crater-pocked desert of the Red Planet itself. For this mild-mannered fossil hunter may just have become Earth's first practicing xenobiologist!

A new hard SF thriller from best-selling alternate history master Eric Flint and ace game designer Ryk E. Spoor.

"[Eric Flint is] an SF author of particular note, one who can entertain and edify in equal, and major, measure." — Publishers Weekly