The Secret of the Ninth Planet: Classic Book Guide and Free Edition
The Secret of the Ninth Planet: author and translator credits, catalogue synopsis, subjects and links to the Gutenberg reading formats.

The Secret of the Ninth Planet is catalogued by Project Gutenberg with author credits for Wollheim, Donald A. (1914–1990).
Catalogue synopsis
Project Gutenberg supplies this automated synopsis of the opening text:
"The Secret of the Ninth Planet" by Donald A. Wollheim is a science-fiction novel published in 1959. When the Sun's light mysteriously begins to dim across Earth, threatening a new ice age, young Burl Denning discovers alien machinery in the Peruvian Andes. As calculations reveal the Sun may explode within years, Burl joins a desperate expedition aboard an experimental antigravity spaceship to hunt down similar installations throughout the solar system and confront an alien force from Pluto.
Book and edition facts
- Title: The Secret of the Ninth Planet
- Author credits: Wollheim, Donald A. (1914–1990)
- Catalogue language: English
Catalogue subjects
- Pluto (Dwarf planet) -- Fiction
- Science fiction
Gutenberg collections
- Category: Adventure
- Category: American Literature
- Category: Novels
- Category: Science-Fiction & Fantasy
- Science Fiction
Read this edition
View the complete Gutenberg catalogue record. Project Gutenberg identifies this edition as public domain in the United States; that designation does not establish its copyright status in every country.
Source notes
Catalogue metadata is public domain and is supplied through Gutendex, which imports Gutenberg's machine-readable catalogue. The automated synopsis is source-supplied, not an independently verified review. Author dates above describe the credited people; no ebook release date is presented as the book's original publication date.


