First entry in a new series with three big all new linked novellas from multiple best-sellers S.M. Stirling, John Ringo & Jody Lynn Nye, and Harry Turtledove! After the extinction asteroid DOESN'T strike Earth, the dinosaurs keep evolving—but so do the mammals. We mammals have achieved human-like shapes, but now it's cold-blooded, magic-using reptiles against the hot-blooded, hot-tempered descendants of cats.

In a heroic, bronze-age world similar to 300, the Mrem Clan of the Claw and its sister warbands are expanding their rough-and-tumble territory, but now they face the Lishkash, masters of a cold-blooded empire of slave armies and magic. It's mammalian courage and adaptation against reptile cunning in a clash of steel and will that will determine which line shall inherit the Earth.