Katie Morag and the Riddles

On the Island of Struay is the home of one of the best loved characters in children's books, Katie Morag McColl! Katie Morag is in a very bad mood because she has broken her mother's necklace and her bad temper gets everyone into trouble at school, and as a punishment the teacher gives them some tricky riddles to solve as homework. Can Katie Morag solve the riddles and get back in everyone's good books?