Farmer, Nancy. The Sea of Trolls

Farmer, Nancy. The Sea of Trolls. Atheneum, 2004 [0-689-86744-1]
Here is a fantasy adventure story full of magic, wrapped around Norse mythology. Jack had just been apprenticed to the local Bard and had started learning magic when he is kidnapped in a Viking raid. Because of his ability of to draw on the Life Force for his magic, Jack ends up going on a quest to the land of the Trolls. This 450 page book is a great fantasy adventure in the spirit of "Lord of the Rings." It is a complete story but it would not be difficult for Farmer to craft a sequel.