"Tunnel in the Sky" by Robert A. Heinlein (1908-1988)

Publisher: Ballantine / Del Rey
Copyright: 1955

"Tunnel in the Sky" is another of the Heinlein juveniles that does not conveniently fit within the same framework as the others. It is hard to estimate approximately when this story is supposed to have taken place, but it can be assumed it is in an extremely far distant future as spaceships are now obsolete.

Instead what is used is a type of hyper-spatial tunnel that can connect any two points in the universe. The development of this type of transportation is described as an offshoot of the development of stasis technology. It is typically also used to get around to various places on Earth, as well as throughout the solar system, and the universe. As far as I'm aware this is the only time in a Heinlein story that a device such as this makes an appearance, most other use spaceships of various types.

The overall premise of the story is the population of earth is now so high that colonization of other planets is desirable for many, and in some cases it is hinted that it may be mandatory. The hyper-spatial tunnels make this extremely easy, and because there is so much call for opportunities new planets there is a need for explorers/adventurers to see if the planet itself is suitable for colonization.

The protagonist of the story is a high school student by the name of Rod Walker who is taking a Social Studies course called "Advanced Survival" which if he passes will allow him to become a colonial explorer. When the story opens he is about to depart on his final exam for the course which is Solo survival.

What this exam consists of is that the student is essentially transferred somewhere and have to survive on his own or her own. After which they will return to Earth, assuming they've survived.

The test conditions are fairly basic:

1. Any planet, any climate, any terrain;
2. No rules, all weapons, any equipment;
3. Teaming is permitted but teams will not be allowed to pass through the gate in the company;
4. Test duration is not less than 48 hours, not more than 10 days.

Sounds pretty basic. But I'll leave it up to you to find out what happens.

Outside of the story, Heinlein as usual explores other concepts, which is one reason that I really enjoy his stories. In this case he looks at individual and group psychology, basic government, interpersonal relationships, and a brief look at religion.

Some reviewers have called this story a combination of "Robinson Crusoe", and "The Swiss family Robinson". However I believe it surpasses both these stories 100 fold.