Tapani Bagge 2011: Konstaapeli Mutanen ja kanien arvoitus
Illustrated by Jusa Hämäläinen
Constable Muddy feels a little lonely and his neighbor suggest he gets a bunny. At first everything is fine, but then the bunny seems lonely. Constable Muddy gets another girl bunny, or so he thinks. Soon there are several bunnies more.
Constable Muddy also trained his bunnies to track and they solve many crimes together. I didn't quite understand the mystery part. Is it how the bunnies breed? Cute story and my son found this very interesting and short enough for him to read.