Troll FellIn the age of the Vikings, two children find themselves battling for their lives against the hideous, grasping twins Grim and Baldur Grimsson; the terrifying Granny Greenteeth and the cunning and ruthless trolls of Troll Fell. Peer Ulfsson stood miserably at his father's funeral pyre, watching the sparks whirl up like millions of shining spirits streaking away into the dark. But someone else is also at the funeral. Peer's half uncle, Baldur Grimsson.