The Whodunit Detective Agency
The Whodunit Detective Agency (also known as JerryMaya's Detective Agency, – "LasseMaja's Detective Agency") is a Swedish children's book series written by Martin Widmark and illustrated by Helena Willis. In the English translation it is called The JerryMaya detective agency. Between 2014 and 2016 eight of the books were published in English by Grosset and Dunlap, an imprint of Penguin Random House. Besides the books there are games, puzzles, etc. A television series based on the books has been produced in Sweden. Series concept. This book series is about two children called Lasse and  Maja (Jerry and Maya) who live in the little city Valleby (Pleasant Valley). They like mysteries so they have started a detective agency and help the police master of Valleby. Books. A list of the books: TV series and films. In 2006 a TV series based on the books was broadcast as "julkalendern". In 2008 the film "LasseMaja's Detective Agency - The Chameleon Strikes Back", which followed up the TV series, was produced. Several films have been made since, including a TV series from 2020.