While on an expedition to the Yucatan, Tom Swift discovers records of a space armada that flew to the earth 3000 years ago.
(card catalog description)
Original title: Tom Swift and His Electronic Retroscope
Genre: Fiction→ Children & Young Adult→ Science Fiction
Fiction→ Children & Young Adult→ Adventure
- Also published as "Tom Swift in the Jungle of the Mayas"
- Written by Jim Lawrence