By John Patrick Green
Two secret-agent alligators who travel by flushing themselves down the toilet and solve crimes with the worst, best puns you've ever heard.
Mango and Brash are alligator agents for S.U.I.T., and the way they get anywhere in the city is by flushing themselves through the sewer pipes. When a much-loved baker blows up and a scientist goes missing, the two of them are on the case, wearing gadget vests and cracking a pun about every four seconds.
Does your child quote jokes back to you all day? This is the one. The puns fly so fast that finishing a page feels like winning something, the case underneath keeps them turning, and the toilet-travel bit gives a groaner exactly the gross factor they're after. There are already a stack of these, so a child who clicks with book one has a long shelf ahead.