The Encounter
K. A. Applegate
Animorphs (3)
Café at the Edge of Outer Space
Robert Appleton
Swords of the Six
Scott Appleton
The Sword of the Dragon (1)
Tom Swift and His Giant Robot
Richard Sklar
Tom Swift, Jr. (4)
Tom Swift in the Caves of Nuclear Fire
Thomas Mulvey
Tom Swift, Jr. (8)
Tom Swift and His Spectromarine Selector
Jim Lawrence
Tom Swift, Jr. (15)
Tom Swift and the Cosmic Astronauts
Tom Swift, Jr. (16)
Tom Swift and the Visitor from Planet X
Tom Swift, Jr. (17)
Tom Swift and the Electronic Hydrolung
Tom Swift, Jr. (18)
Tom Swift and His Triphibian Atomicar
Tom Swift, Jr. (19)
Tom Swift and His Megascope Space Prober
Tom Swift, Jr. (20)
Tom Swift and the Asteroid Pirates
Tom Swift, Jr. (21)
Tom Swift and His Repelatron Skyway
Tom Swift, Jr. (22)