When Ms. Frizzle and her student Arnold follow an underground passage beneath Craig's Castle Shop and find themselves in the middle of a siege of a 12th century English castle, they learn a great deal about both castles and the Middle Ages.

Text and cutaway illustrations depict how people lived and worked inside a medieval castle.

Text and cutaway illustrations depict the construction of a medieval cathedral and the way of life inside it.

"Learn about dragons, jousting, and jesters as you create your own coat of arms, armor, catapult, and more! Easy to follow directions and supply lists included for each craft"--Provided by publisher.

Describes horrible jobs that were performed during the Middle Ages, including miller, bog iron collector, and plague doctor.