Professor Ari Berk returns to reveal another trove of magical history to his avid readers: the history of the humble hobgoblin. Known by many names, including Boggarts, Brownies, Gallybeggars, Kows, Pixies, and Tom-tumblers, hobgoblins have pervaded human folktales for centuries. In his latest collection of mysterious ancient lore, Professor Berk reveals the proper etiquette for interacting with hobgoblins, indicates their favored hiding places (crawl...