Explore fascinating, often chilling "what if" accounts of the world that could have existed–and still might yet...

Science fiction’s most illustrious and visionary authors hold forth the ultimate alternate history collection. Here you’ll experience mind-bending tales that challenge your views of the past, present, and future.

Edited by Harry Turtledove and Martin H. Greenberg

Contents:

• Introduction by Harry Turtledove
• The Lucky Strike by Kim Stanley Robinson
• The Winterberry by Nick DiChario
• Islands in the Sea by Harry Turtledove
• Suppose They Gave a Peace by Susan M. Shwartz
• All the Myriad Ways by Larry Niven
• Through Road No Whither by Greg Bear
• Manassas, Again by Gregory Benford
• Dance Band on the Titanic by Jack L. Chalker
• Bring the Jubilee by Ward Moore
• Eutopia by Poul Anderson
• The Undiscovered by William Sanders
• Mozart in Mirrorshades by Bruce Sterling and Lewis Shiner
• The Death of Captain Future by Allen Steele
• Moon of Ice by Brad Linaweaver