The Boy and the Trolls was written by Walter Stenstrom.

Born ( 1881 ) in Malilla, he became an author, comedy writer, and lecturer. 

 Walters parents were the pharmacist Axel Fabian Stenström and Ingeborg Olivia Abrahamsson. He graduated in 1900 and in 1904 became a pharmacology candidate.

He was active as a theater man and managing director of Skådebanan , but also wrote some fairy tale plays.

Other children tales include 'The Princess who wouldn't eat porridge' and 'The gingerbread men in the gingerbreadt tin'.

Walter passed away in 1926.