Libros de Nancy E. Krulik (3 libros)

Katie Kazoo se enfrenta a un tremendo problema: Susi y ella son amigas de toda la vida, pero, de pronto, a Susi le da por volverse una presumida insoportable, y eso acaba con la paciencia de Katie. Si, antes, Susi y ella eran amigas para siempre, ¡a partir de ahora serán enemigas íntimas!

Mrs. Frizzle's class investigates the disappearance of the salmon from the sea and in the process learn about migration.

When Katie and Suzanne learn that their favorite band, the Bayside Boys, will perform in Cherrydale, they think their biggest problem is how to get tickets, but Katie magically turns into one of the Boys and causes the band to break up.