Tunnel in the Sky Author:Robert A. Heinlein ROBERT A. HEINLEIN — "Tomorrow, at dawn, you are going to be shoved through a doorway that opens into a world you have never seen. You do not know if the world you are about to enter will be tropical or arctic, desert or jungle. You may emerge in a dawn-history swamp snarling with giant reptiles; you may slither on the ice of a world gaunt beneat... more »h the fading light of an aged and lonely sun . . . .
"TUNNEL IN THE SKY by Robert A. Heinlein tells about a graduating class of survivalists
in a future time when, through a hyperspatial tunnel, humans from Earth can be dumped on any one of the countless planets of the universe . . .
"Heinlein tells the story wonderfully well . . . it is a thoroughly adult book in concept and execution."
---San Francisco Chronicle
"As fascinating as Robinson Crusoe, as ingenuous as The Swiss Family Robinson, this is a book in the grand tradition of high literature."