When Junie B. learns that her kindergarten class is going on a field trip to a farm, she worries about being attacked by a rooster.

Future scientist Kimmy eagerly shares information about dinosaurs during a school field trip until classmate Jake tells her "girls aren't scientists," but Mr. Tiffin sets her straight.

Ruthie thinks nothing exciting will ever happen to her until her sixth-grade class visits the Art Institute of Chicago, where she and her best friend Jack discover a magic key that shrinks them to the size of gerbils and allows them to explore the Thorne Rooms--the collection of sixty-eight miniature rooms from various time periods and places--and discover their secrets.

Lavender and the rest of the sixth-graders are on a camping trip to the Chiricahua wilderness, but the trip seems cursed from the start, and when a flash flood splits the group up Lavender finds herself lost, together with her former best friend Marisol, mean-girl Rachelle, and a boy John who has been behaving like a surly jerk since the start--they have only one pack of supplies and only the most basic wilderness knowledge, but if they are to survive...