Astrid Lindgren

Imagine Eric's delight when, one day, a little man with a propeller on his back appears hovering at the window! It's Karlson and he lives in a house on the roof. Soon Eric and Karlson are sharing all sorts of adventures, from tackling thieves and playing tricks to looping the loop and running across the rooftops. Fun …

Mesterdetektiven Blomkvist er en bog af den svenske forfatter Astrid Lindgren. Bogen er en i en serie af bøger, hvori hovedpersonen Kalle Blomkvist sammen med nogle venner hjælper politiet med at opklare kriminalsager.