Permission to quote from the following is gratefully acknowledged:

“Author’s Note,” from No. 44, The Mysterious Stranger, by Mark Twain, edited by John Tuckey and Robert Hirst, copyright © 1983 by The Regents of The University of California. Reprinted by permission from The University of California Press.

Mantissa by John Fowles, published by Little, Brown and Company.

Copyright © 1982 by J. R. Fowles.

The Counterfeiters by Andre Gide. Copyright 1927 and renewed 1955 by Alfred A. Knopf, Inc. Reprinted by permission of the publisher.

Point Counterpoint by Aldous Huxley, published by Harper & Row Publishers Inc. Copyright 1928 by Aldous Huxley. Copyright renewed 1956 by Aldous Huxley.

At Swim—Two Birds by Flann O’Brien, copyright © Brian Nolan 1951, 1966. Reprinted by permission of Brandt & Brandt Literary Agents, Inc.

Published in association with Tor Books.

Copyright © 1986 by Andrew M. Greeley

All rights reserved.

Warner Books, Inc., 666 Fifth Avenue, New York, NY 10103

A Warner Communications Company

First Printing: June 1986

Map by Heidi Hornaday

Cover painting by Boris Vallejo

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eISBN 9781250237378

First eBook edition: December 2018