As the Inquisition closes in can Isaac protect both his family and his faith? The Inquisition is determined to execute heretics like Isaac - those who practice Judaism in secret. Friends and family are arrested, tortured, and set against each other. Isaac's best friend is accused of heresy and he is forced to choose between him and his own family. King Ferdinand offers to help him - can Isaac trust him? As the mystery unravels what secrets will Isaac uncover about himself, his friends, and his family?

Can Isaac discover the real killer and disprove the 'blood libel'?