When Mary Anne suffers from a run of bad luck after throwing away a chain letter, her Baby-sitters Club friends try to help.

In his letters to his favorite author, ten-year-old Leigh reveals his problems in coping with his parents' divorce, being the new boy in school, and generally finding his own place in the world.

Now that they live in different cities, thirteen-year-old Tara and Elizabeth use email to "talk" about everything that is occuring in their lives and to try to maintain their closeness as they face big changes.

Thirteen-year-old Atticus "Tick" Higginbottom begins receiving mysterious letters from around the world signed only "M.G., " and the clues contained therein lead him on a journey to the perilous 13th Reality and a confrontation with evil Mistress Jane.

Sent to Camp Happy Harmony to learn how to get along with each other, pairs of brothers and sisters chronicle in letters home how they come to suspect the intentions of the singing family running the camp.

Through a series of letters, Sophie Brown, age twelve, tells of her family's move to her Great Uncle Jim's farm, where she begins taking care of some unusual chickens with help from neighbors and friends.

When Appleton Elementary's new school board president, Ivana Beprawpa, uses her position to line her own pockets, student sleuths Sara and May, supported by passionate librarian Rita B. Danjerous, seek the truth. Told through letters, memos, and text messages.--

In this story told mostly through letters, children's book author, I. B. Grumply, gets more than he bargained for when he rents a quiet place to write for the summer.