Science fiction time travel tale for young adults. A survival story that showcases the palaeological theories of the 1960s. Two teenagers, Bob and Pete, go back through time to the Ice age to rescue Pete's father, who has not returned from a trip in Bob's father's defective time machine.
Editions · 4
Hardback
1960 · Westminster John Knox Press
EN
9780664323714
Paperback
1970 · Scholastic Paperbacks
EN
9780590025348
Paperback
2014 · Wildside Press, LLC
EN
9781322403526
Paperback
2014 · Wildside Press
120 pp · EN
9781479404599
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