
In the second of MS. FRIZZLE'S ADVENTURES, the Friz travels back in time to a medieval castle—and teaches readers all about the Middle Ages. With her reluctant student, Arnold, the Friz slips through a mysterious trap door—and ends up in the Middle Ages! There, they explore a medieval castle, meeting the people who live there and learning about everyday life within the castle walls. When the castle is threatened by invaders, Arnold and the Friz don chain mail to lead the defense. They repel the invaders just in the nick of time, then they joust and feast before returning to the 21st century. With their careful research and trademark wit, Cole and Degen introduce the many facets of medieval life.
Author

Joanna Cole, who also wrote under the pseudonym B. J. Barnet, was an author of children’s books who teaches science. She is most famous as the author of The Magic School Bus series of children's books. Joanna Cole wrote over 250 books ranging from her first book Cockroach to her famous series Magic School Bus. Cole was born in Newark, New Jersey, and grew up in nearby East Orange. She loved science as a child, and had a teacher she says was a little like Ms. Frizzle. She attended the University of Massachusetts and Indiana University before graduating from the City College of New York with a B.A. in psychology. After some graduate education courses, she spent a year as a librarian in a Brooklyn elementary school. Cole subsequently became a letters correspondent at Newsweek, and then a senior editor for Doubleday Books for Young Readers.