An aviator who has invented a new type of engine is hired by the Soviet government. He strikes up a friendship with another American who is a cryogenicist. They go off on a flight to test the new engine when their plane crashes in the wilds of Siberia. The two find a frozen caveman and the they decide to revive him. The caveman proves intelligent and they teach him English and take him back to the states.
Jimber-jaw as they name him becomes a successful boxer. He sees a movie and recognizes the actress who looks like his mate. Unfortunately the actress does not act like his former mate. When he catches her with another man he decides to commit suicide by locking himself in a meat locker. He leaves a note stating not to thaw him out.
At 21 pages this is actually more a short story then an actual book. The story starts out with an interesting premise but the author sort of lost interest and ends it on a dour note. The story is a curiosity on a very obscure writing of Burroughs. That would probably be the only reason to bother with this short story.