Things can't get any worse. Legends are running riot. Half-Hunters are out of control. Darkmouth has been taken away from Finn and Emmie. And Finn's dad, Hugo--proud Legend Hunter-- is washing dogs for a living. But something even more terrifying lurks beneath the surface: an ancient horror threatening both our world and the Infested Side. So scratch that. Things can get worse. Much worse.

They had won the battle but lost Darkmouth. There had been an invasion, a fight, death, vitory...and when it was all over Finn was accused of being a traitor. Finn's mother suggested that the awful situation should force them to do something they'd not done before. "Let's go on a holiday," she said. Finn did not want a holiday at all. He wanted Darkmouth back.