Cass' mind has been transported back to Medieval England after she dared to taste the Midnight Sun's deadly chocolate, leaving her body in a coma. Invisible to everyone, save for a clairvoyant whose second sight helps Cass on her quest, Cass finds her ancient ancestor and founder of the Terces Society, the jester, with the help of a double monocle with mysterious powers. Cass must help the jester escape the wicked clutches of Lord Pharoah, the founder of the Midnight Sun, if she is to steal the Lord Pharoah's treasure, which may or may not, contain the Secret. To Cass' horror when she wakes from her coma, she has forgotten everything, but a school trip to a medieval fair stirs Cass' memories when she is confronted with a menacing blast from her time-travelling past-Bursting with inventive characters and laugh-out-loud moments, readers will be instantly hooked once more by the stylish, tongue-in-cheek story-telling of Pseudonymous Bosch.