A message mouse leads Bartleby to the Black Tabby Dojo, where he'll train with the Kittynati to become a ninja and earn his Red Tabby belt.

Someone's been snatching up all the nummle berries in the Rainbow Kingdom. Good thing detectives True and Bartleby are on the case!

True didn't mean to hurt Cumulo's feelings! But now the little cloud is in hiding -- and she's nowhere to be found when the Rainbow Kingdom needs her.