Tunnel in the Sky is a science fiction novel by Robert A. Heinlein, published in 1952. It was one of a series in the Heinlein Juveniles, a long and successful series of science fiction novels published by Scribner's.
Ad blocker interference detected!
Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers
Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.