"As Ragnarok--the apocalypse--approaches, the thirteen-year-old descendants of the gods realize they can't take every step of their journey together, as Matt must fight the Midgard Serpent alone, and Fen and Laurie are pulled in different directions"--

Thor's Serpents 2016, Little, Brown Books for Young Readers

ISBN-13: 9780316204934

Trade paperback

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Thor's Serpents 2015, Little, Brown Books for Young Readers

ISBN-13: 9780316204958

Hardcover

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