The year is A.D. 793; Jack and his sister have been kidnapped by Vikings and taken to the court of Ivar the Boneless and his terrifying half-troll wife; but things get even worse when Jack finds himself on a dangerous quest to find the magical Mimir's Well in a far-off land, with his sister's life forfeit if he fails. Other threats include a willful mother Dragon, a giant spider, and a troll-boar with a surprising personality—to say nothing of Ivar the Boneless and his wife, Queen Frith, a shape-shifting half-troll, and several eight foot tall, orange-haired, full-time trolls. But in stories by award-winner Nancy Farmer, appearances do deceive. She has never told a richer, funnier tale, nor offered more timeless encouragement to young seekers than "Just say no to pillaging."

Jack is amazed to have caused an earthquake. He is thirteen, after all, and only a bard-in-training. But his sister, Lucy, has been stolen by the Lady of the Lake; stolen a second time in her young life, as he learns to his terror. Caught between belief in the old gods and Christianity (790 AD, Britain), Jack calls upon his ash wood staff to subdue a passel of unruly monks, and, for his daring, ends up in a knucker hole. It is unforgettable—for the boy and for readers—as are the magical reappearance of the berserker Thorgil from a burial by moss; new characters Pega, a slave girl from Jack's village, and the eager-to-marry-her Bugaboo (a hobgoblin king); kelpies; yarthkins; and elves (not the enchanted sprites one would expect but the fallen angels of legend). Rarely does a sequel enlarge so brilliantly the world of the first story. Look for the conclusion in The Islands of the Blessed in 2009.

It begins with a vicious tornado. (Odin on a Wild Hunt, as the young berserker Thorgil sees it.) The fields of Jack s home village are devastated, the winter ahead looks bleak, and a monster a draugr has invaded the forest outside of town. Soon, Jack, Thorgil, and the Bard are off to right the wrong of a death caused by Father Severus. Their destination is Notland, realm of the fin folk, though they will face plenty of challenges and enemies before get they get there. Impeccably researched and blending the lore of Christian, Pagan, and Norse traditions, this expertly woven tale is beguilingly suspenseful and, ultimately, a testament to love.