Tunnel in the sky.

A high school senior goes through the gate to an unknown planet for a two-to-ten day final exam in Advanced Survival, and realizes, after a period of fighting the elements and wildlife, that something has gone wrong with the gate and what was a brief survival exam is an endless struggle for life.

Bibliographic Details

Main Author:	Heinlein, Robert A. (Robert Anson), 1907-1988
Format:	Book
Language:	English
Published:	New York : Scribner, [1955]
Subjects:	Survival > Fiction. Science fiction.