Collection of science-fiction short stories by Heikki Oja, many of the stories originally published under pseudonyms Matias Ranta and Matilda Ranta.
Writing a summary for young readers…
For young readers
Book data: Open Library
Collection of science-fiction short stories by Heikki Oja, many of the stories originally published under pseudonyms Matias Ranta and Matilda Ranta.
Book data: Open Library