A "rollicking, bittersweet tale of time travel and ecology" from the Nebula and Hugo Award–winning author of the Gaea Trilogy ( Publishers Weekly, starred review). "H. G. Wells meets Jurassic Park" in this novel about a multibillionaire, a time machine, and a baby woolly mammoth named Little Fuzzy ( The Best Reviews). The discovery of a perfectly preserved frozen mammoth in the Canadian wilderness gives wealthy visionary Howard Christian the opportunity of a lifetime: to clone it. But what really piques Christian's curiosity is what he finds next to the mammoth: a metal box—and the mummified body of a man wearing a watch. Working to discover the box's purpose and clone the mammoth, a top physicist and an elephant veterinarian will be flung thousands of years into the past and back again—bringing a baby mammoth along for the ride—in this "imaginative and engaging" adventure that shows "Varley . . . in top form" ( San Francisco Chronicle). Praise for John Varley "John Varley is the best writer in America." —Tom Clancy "There are few writers whose work I love more than John Varley's, purely love." —Cory Doctorow "One of science fiction's most important writers." — The Washington Post "Inventive." —The New York Times "One of the genre's most accomplished storytellers." — Publishers Weekly