Hour of the Gremlins
by Gordon R. Dickson and Ben Bova

Description:
THREE FULL-LENGTH NOVELS OF FAST-MOVING ADVENTURE AND SIDE-SPLITTING HUMOR IN ONE BOOK

Hour of the Horde by Gordon R. Dickson: The Horde roved the galaxies, stripping whole star systems of life. As they advance on our galaxy, the Milky Way, a galaxy-wide force hastily arrayed to stop them. But Miles Vander, the warrior sent by Earth to join the defense, must first convince his alien crew/members that he is just as good a soldier as they.

Wolfling by Gordon R. Dickson: Earth was a primitive outpost, its people dubbed "wolflings" by the rulers of the galactic empire. Jim Kell was sent to the High-Born ruler's Throne World, with orders only to observe. . . until he cast away his orders from Earth and proved himself a Wolflinq indeed.

Gremlins Go Home by Gordon R. Dickson and Ben Bova: Suppose that elves, gremlins, and leprechauns are really tiny aliens marooned on Earth for hundreds of years. They want to go home, and human technology finally can make it possible. . . if they_can get aboard NASA's Mars rocket and hijack it! Pity the poor human who has to help them. . .