Newton's Cannon, the critically acclaimed first volume in J. Gregory Keyes's Age of Unreason series, brilliantly combined the best of alternate history, fantasy, and science fiction in a bravura reimagining of the tempestuous eighteenth century. Now, Keyes triumphantly adds to his masterpiece in the making . . .

A CALCULUS OF ANGELS

1722: A second Dark Age looms after the devastating impact of an asteroid, unnaturally drawn to Earth by dire creatures who plot against the world of men. Yet this destruction is just the opening salvo in a war of annihilation.

Sir Isaac Newton and his young apprentice, Benjamin Franklin, have taken refuge in ancient Prague, seeking the secrets of the aetheric beings whose vast powers and new sciences have so nearly destroyed humanity . . . yet who may prove to be its last, great hope.

But their safety is tenuous, as Peter the Great marches his unstoppable forces across Europe. And half a world away, Cotton Mather and Blackbeard the pirate lead a party of colonial luminaries back across the Atlantic to discover what has befallen the Old World. With them sails Red Shoes, a Choctaw shaman whose mysterious connections to the invisible world warn him that they are all moving toward a confrontation as violent as it is decisive . . .

From the Back Cover

"The opening blast of his planned Age of Unreason trilogy is powerful enough to make readers grab Book 2, A Calculus of Angels, when it arrives."
--USA Today

"A NEW MYTH-MAKER, A NEW STAR OF THE FANTASY GENRE HAS ARRIVED. Like Ursula LeGuin in the '60s, John Varley in the '70s, and Orson Scott Card in the '80s, author J. Gregory Keyes may well be the leading fantasy writer of the 1990s."
--BookPage

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