Mr. Bass's Planetoid is a 1958 children's science fiction novel by Canadian author Eleanor Cameron. The novel follows The Wonderful Flight to the Mushroom Planet (1954) and Stowaway to the Mushroom Planet (1956). The book is illustrated by Louis Darling.

Mr. Bass's Planetoid
First edition
AuthorEleanor Cameron
IllustratorLouis Darling
CountryUnited States
LanguageEnglish
SeriesThe Mushroom Planet Books
GenreScience fiction Children's literature
PublisherLittle, Brown and Company
Publication date
1958
Media typePrint (Hardcover)
Pages227
Preceded byStowaway to the Mushroom Planet 
Followed byA Mystery for Mr. Bass 

Plot introduction edit

The boys hunt for Prewytt Brumblydge, inventor of the Brumblitron, which is threatening to explode, destroying the Earth. This time, instead of journeying to Basidium, they fly to an airless rock named Lepton that orbits 1,000 miles above the Earth's surface. This novel introduces the fictional metal Brumblium, a greenish metal that shows as infragreen on a spectroscope and has twice the density of uranium.

See also edit