Title: Gridzbi Spudvetch!
First published: February 25, 1993
Description: When Jim and Charlie overhear two of their teachers talking in a secret language and the two friends set out to solve the mystery, they do not expect the dire consequences of their actions.
Subjects: Children's fiction, Adventure and adventurers, fiction, Science fiction, Extraterrestrial beings, Fiction, Interplanetary voyages, Juvenile fiction, Aliens (Fictional characters)