On her thirteenth birthday, Claudia Quash receives a mysterious letter. It unlocks an unsolved crime, and Claudia has to clear her family name. Little does she know that she'll be transported back in time into a magical world, where she also discovers special powers of her own. On her journey she'll be chasing criminals, making new friends, and facing a dark terror that hovers over the land. If she can't solve the mystery she might never return home...