Is there really a ghostly guinea pig on the loose? In this top-secret journal, super-sleuth Mariella Mystery records clues, observations, and anything else to help solve the mystery--includes lots of
A mysterious Bad Hair Day Fog is giving everyone nutty hair! In this top-secret journal, super-sleuth Mariella Mystery records clues, observations, and anything else to help solve the mystery--include
A super-strange poodle is causing mayhem. In this top-secret journal, super-sleuth Mariella Mystery records clues, observations, and anything else to help solve the mystery--includes lots of cool draw
She's smart as a whip, super sleuth-y, and able to solve most mysterious mysteries and perplexing problems in no time flat. Mariella Mystery (age nine and a bit) knows that all good detectives write d
