The battle with the Morrigan may be over but Jack Flint's quest is only just beginning. As the Morrigan struggles with our three adventurers, she hurls Corriwen Redthorn through a gateway and into an unknown world. Jack and Kerry know they must follow and find her - and, unlike Corrie who is alone and afraid, they have the Book of Ways to help them. They step into Eirinn where the land seems held in the grip of an everlasting winter. Jack and Kerry are aided and abetted in their search by friendly Leprechauns, a gentle giant and a troupe of travelling players with magical powers. They soon discover that others are hunting her too. They're up against the treachery of Dermott the much feared Wolf Lord and Fainn, his Spellbinder. They have stolen the legendary silver cauldron of plenty and the golden harp which keeps the seasons in check. But it's also been foretold that Dermott will meet his fate at the hands of a fighting woman with red hair. Could Corriwen be his nemesis? He's desperate to destroy her and anything, or anyone, who gets in his way. Corriwen meantime has saved Connor, a local boy, from being killed by Dermott's men. He's a boy, as it turns out, with quite a story to tell. And Jack Flint is beginning to unravel the mystery of who he might be - his adventures in Eirinn reveal clue after clue that might lead him to his father.