One night, when Ludo is home alone, his family's only horse, Renti, escapes from the stable. Overcome with guilt and fear, Ludo follows Renti, and before long the pair find themselves in the House of the Archer, a gateway to the Zodiac. Here, the Archer tells Ludo that Renti is a Star Horse, and has chosen to return to his own kind.

Tells the story of an electric submarine, its eccentric captain, and the undersea world

Covers training for knighthood, chivalry, building and living in a castle, and other details of medieval life, discusses the events and leading personalities of the Middle Ages, and retells medieval legends

Describes a year in the life of the monks living in the great monastery of Cluny in medieval France, as seen through the eyes of a young boy who has just joined the monastic order.

Observes a young Viking boy who lives on a farm in Denmark around 900 A.D. while his father sails on trading expeditions, until the entire family moves to a new settlement in England. Includes illustrations of tools and equipment they might have used in their daily lives.Observes a young Viking boy who lives on a farm in Denmark around 900 A.D. while his father sails on trading expeditions, until the entire family moves to a new settlement in England