In her first big case, Oona Crate was able to solve the mystery of her uncle's--the wizard of Dark Street--disappearance while exposing Red Martin as a criminal mastermind. Despite her success, Oona's detective agency has failed to take off. But a new challenge arises to capture her attention - The Magician's Tower Contest. Held every two years, no one has ever completed the array of dangerous tasks, riddles, and obstacles. Now brave souls--includ­ing Oona--from all over Dark Street will enter the contest in hopes of becoming the first successful contestant.

As the contest commences, a new case arises. A punchbowl--one with great magical powers--has disappeared from the carnival surrounding the Magician's Tower.

If Oona can find the culprit, she could use the bowl to answer her long-standing question about her mother and sister's death was she really at fault?

Full of magic, mystery, danger, and fun, The Magician's Tower continues the wonderful adventures of Oona Crate.