When high school student Clay Jenkins receives a box in the mail containing thirteen cassette tapes recorded by his classmate Hannah, who committed suicide, he spends a bewildering and heartbreaking night crisscrossing their town, listening to Hannah's voice recounting the events leading up to her death.

When his younger brother is diagnosed with leukemia, thirteen-year-old Steven tries to deal with his complicated emotions, his school life, and his desire to support his family.

After Jack Grammar's friends, Percy and Natalie, post a personal ad in the school newspaper for him, Jack ends up with only seven days to date all the responses before asking one special girl to the prom.

When Kate Bailey lets her best friend, Alana, talk her into joining their high school's podcast she did not expect to find herself as the host, or to enjoy answering calls and giving advice on the air, but she is actually pretty good at it--but when she gets an anonymous call from a boy (possibly Diego Martinez) about his secret feelings for a girl (probably Alana) she is faced with a problem, because she is developing feelings for Diego herself.

Callie rides an emotional roller coaster while serving on the stage crew for a middle school production of 'Moon Over Mississippi,' as various relationships start and end, and others never quite get going.

While conducting research for a school paper on smallpox, Mitty finds an envelope containing 100-year-old smallpox scabs and fears that he has infected himself and all of New York City.

As overweight Rosemary takes charge of her life and slowly loses weight, she also copes with her mother's cancer, having a boyfriend for the first time, and discovering that other people's lives are not as perfect as they appear.