When Clay Jenson plays the casette tapes he received in a mysterious package, he's surprised to hear the voice of dead classmate Hannah Baker He's one of 13 people who receive Hannah's story, which details tабэштhe circumstances that led to her suicide Clay spends the rest of the day and long into the night listening to Hannah's voice and going to the locations she wants him to visit The text alternates, sometimes quickly, between Hannah's voice (italicized) and Clay's thougавсзэhts as he listens to her words, which illuminate betrayals and secrets that demonstrate the consequences of even small actions Hannah, herself, is not free from guilt, her own inaction having played a part in an accidental auto death and a rape The message about how we treat one another, although sometimes heavy, makes for compelling reading .