Having already appropriated Odin and Loki for his novel American Gods, Gaiman turns his restless imagination to a retelling of Norse folklore (a youthful interest of his). He begins by introducing us to the three main mythological figures: Odin, the highest and oldest of the gods; his son, Thor, who makes up in brawn what he lacks in brains; and Loki, offspring of giants and a wily trickster. In a series of stories, we learn how Thor acquired his famous hammer, Mjollnir, how Odin tricked a giant into building a wall around Asgard, the home of the gods, how Loki helped Thor retrieve his hammer from the ogre that had stolen it, and how a visit to the land of the giants resulted in the humbling of Thor and Loki. In most of the stories, a consistent dynamic rules as one god tries to get something over on another god, but novelist that he is, Gaiman also provides a dramatic continuity to these stories that takes us from the birth of the gods to their blood-soaked twilight. Employing dialogue that is anachronistically current in nature, Gaiman has great fun in bringing these gods down to a human level. Like John Gardner in Grendel, a classic retelling of Beowulf, and Philip Pullman in his rewriting of Hans Christian Andersen stories, Gaiman takes a well-worn subject and makes it his own.