Martha is given her magic calculator and has to discover the secret code that will unlock its powers. She and Oscar meet the Halving Ladybird, the Number Eating Crocodile, the Doubling Butterfly, and the Making Five Starfish in their search for the answer. Find out more Get Sample Pages Emailed to You
Martha and Oscar are transported to a dramatic argument between Knights about who will save the Princess from the dragon. Again she meets the Halving Ladybird to solve the problem she faces. Oh, and empowers the Princess while she's at it... Find out more