The Time Warp Trio discover that when they say the word "Thursday" (derived from the Viking god Thor, as in "Thor's Day") over and over again too close to a certain magic book, they are transported back to 1000 A.D. Now repackaged. Illustrations.

Viking It and Liking It #12 2004, Puffin Books, New York, NY

ISBN-13: 9780142400029

Trade paperback