Twelve-year-old Meredith's world is rocked when her best friend Anjali dies from a sudden viral infection. In letters to Anjali, Meredith puzzles through how to cope with the ongoing challenges of school and regular life—without Anjali by her side. Complicating matters is the new friendship Meredith develops with Noah, the object of a crush she and Anjali once shared. Meredith's connection with Noah leads first to guilt as the two grow closer…and ultimately to revelations that could shatter every memory Meredith holds dear regarding her lost friend.