To help grieve her loss, Bailey creates a chat bot of Vanessa using years' worth of their shared text messages and emails. The more data she uploads to the bot, the more it feels like she's really talking to her best friend. That is, until the bot starts dropping hints that there was more going on with Vanessa than Bailey realized�a secret so big, it may have contributed to Vanessa's death.

This compelling puzzle of a story, filled with engrossing twists and turns, is written in alternating prose and text message formats. Teens will gobble up this fast-paced page-turner.