Skip content
Get a free audiobook AND support bookstores Make the switch
Exchange Rate by Hal Clement
  Send as gift   Add to Wish List

Almost ready!

In order to save audiobooks to your Wish List you must be signed in to your account.

      Log in       Create account
Libro.fm app

Get a free audiobook when you make the switch!

When you start a new membership in support of local bookstores with the promo code SWITCH, you’ll get a bonus audiobook credit at sign-up.

Make the switch

Gift audiobook credit bundles

You pick the number of credits, your recipient picks the audiobooks, and your local bookstore is supported by your purchase.

Start gifting

Exchange Rate

$5.79

Narrator Kerin McCue
Length 2 hours 30 minutes
Language English
  Send as gift   Add to Wish List

Almost ready!

In order to save audiobooks to your Wish List you must be signed in to your account.

      Log in       Create account

In this classic novella, harried human explorers must try to figure out the lifeways and motivations of some extremely strange and enigmatic alien creatures on one of the strangest planets ever portrayed in science fiction - and do it all before the clock runs out.

Harry Clement Stubbs (1922 – 2003) better known by the pen name Hal Clement, was a science fiction writer and a leader of the hard science fiction subgenre. He also painted astronomically oriented artworks under the name George Richard. In 1998 Clement was inducted by the Science Fiction and Fantasy Hall of Fame and named the 17th SFWA Grand Master by the Science Fiction and Fantasy Writers of America.

Libro.fm app

Get a free audiobook when you make the switch!

When you start a new membership in support of local bookstores with the promo code SWITCH, you’ll get a bonus audiobook credit at sign-up.

Make the switch

Gift audiobook credit bundles

You pick the number of credits, your recipient picks the audiobooks, and your local bookstore is supported by your purchase.

Start gifting
Get a free audiobook AND support bookstores Make the switch