Mr. and Mrs. Bunny—Detectives Extraordinaire! by Mrs. Bunny, translated from the Rabbit by Polly Horvath and illustrated by Sophie Blackall
“Madeline has always been the responsible one of the family, so when her parents disappear, she decides that she will have to be the one to find them. Especially since there’s a ransom note written in code, signed by someone named The Enemy and left behind by a carload of (Maddy is quite sure) foxes. …