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Publisher's Summary

Dr Henshaw had created what he thought was a time travel machine and he had sent guinea pigs through it. But now he needed a human guinea pig to test it with. Christopher Wilkonsen thought the whole idea was absurd, until a book that had been sent through the machine came back with a thumb print of his lost sweetheart Vanessa on it.

©1964 Ace Books, Inc. (P)2013 Audible, Inc.

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