The Riddle of the Poisoned Monk

Charlie’s mother is about to be taken for witchcraft! Charlie, too. With the aid of Balthazar, his cat, he escapes – only to find himself in another time and a different kind of danger!

In medieval Northumbria there are sinister goings-on at Goslar Abbey. Someone is poisoning the monks. In peril of his own life, can Charlie decipher the runic riddle and solve the mystery?