Book is tight and square - probably unread. Back cover shows light to moderate wear, and paper-quality is low enough that the uniform tanning is noticeable.

Spacial Delivery (1961) - The Dilbians were humanoids with a difference. They were over 9 feet tall and built more like Kodiak bears than people. But they weren't bears - and it was important to the Ambassador from Earth to see that the Dilbians remained good friends with Earth, rather than be swayed by the rival empire of the Hemnoids. Dilbians have nicknames for everything - humans were "Shorties" and Hemnoids were "Fatties." So when one of that feuding race of rugged individualists (the Streamside Terror) kidnapped an Earth girl, the problem called for a troubleshooter with the patience of a saint and the agility of an acrobat. John Tardy was a decathlon-winning athlete on Earth who had been drafted to do the job. The Dilbians had a plan for enabling John Tardy to catch up to the Streamside Terror: have him delivered as a piece of mail by Hill Bluffer, the mailman. Just one little problem: once he caught up with him, the Dilbians expected Half-Pint Posted (John Tardy) to beat the Streamside Terror in a fight - man to man, no weapons, no holds barred.

This is based on a novelet: "The Man in the Mailbag" from Galaxy April 1959. The first book appearance was as half of an Ace Double (in 1961.)