Trying to help her hard-working father and twin sister to adjust to life in Stoneybrook, Abby Stevenson becomes the newest member of the Baby-sitters Club and shares her first adventure.

Abby Stevenson and her twin sister, Anna, the new girls in town, are trying to adjust to everything new and help their hardworking, fatherless family.

Trying to cheer up her twin, Anna, who has been diagnosed with scoliosis, Abby fears that the condition is driving them apart when Anna seems to not want Abby's help and begins to do things on her own.

When her troubles in school culminate in her being dropped back to the seventh grade, Claudia struggles with feelings of failure while adjusting to classmates outside of the Baby-sitters Club.

Stacey quits the club, but suddenly realizes that her new "friends" are using her as a cover for their drinking, shoplifting, and other ideas of summer fun.

Based on the hit USA Network series The 4400, an original novel about a group of 4400 people taken out of their time and returned to the present day with special powers, only no one, including them, is sure if they are a force for good...or for evil. Over nine thousand people were killed in Seattle, when promicin was unleashed within the city limits. Now the Federal government has to decide how to deal with citizens who have powers and abilities that cannot be legislated. An uneasy truce has arisen between Jordan Collier, the self-styled leader of The 4400, and the Federal government. While he stopped more people from being killed, Collier was the one responsible for unleashing promicin on the world. Now governments around the world have to wonder just who controls these powerful people and just what are Collier and The 4400 going to do next?