Aarne Haapakoski (1904–1961) was a Finnish pulp writer.
He is known for a detective fiction series about architect/detective Klaus Karma[1] and a science fiction series about a robot named Atorox.
Both series were written under the pseudonym Outsider.
This article about a Finnish writer or poet is a stub.
You can help Wikipedia by expanding it.This article about a science fiction writer is a stub.