FOUR CAME BACK
VG+ or better
Bantam Books [1st paperback printing] - February 1970 (McKay hardcover was 1968.) Cover by Kossin, 214 pages, 95 cent cover price. Condition is VG+ or better: tight and almost square with flat spine, spine has 1 line and a raised wrinkle/ridge (as printed); age tanning is mild and uniform; very light overall wear. No stamps, marks or writing - a clean copy.
An uncommon novel by Martin Caidin: Four Came Back.
Caidin tends to write near-future thrillers with good science. This means that time and events will tend to pass his novels by, and thus they will not get reprinted. I think that if the book is any good, this makes little difference - you will learn plenty about the fears and hopes of the time in which they were written.