Published by Ace Books, New York, 1965
Language: English
Seller: Cameron-Wolfe Booksellers, Taos, NM, U.S.A.
Mass Market Paperback. Condition: Very Good Plus. Podwil (cover art) (illustrator). First Thus - First Printing. # F-355. Two strange worlds: one consisting of two planets locked to a common axis, the other shaped like a sharp-edged doughnut. A team of mind-linked explorers find much more than they expected! 191+ pages. CONDITION: a bright, tight, square, unmarked, likely unread copy with minimal shelf-wear, compromised only by a small scuff on a back cover corner and another (with a tiny crease) on the front. This handsome copy is now in a clear, protective polypropylene bag.