Piper Sullivan was in a strange hiking accident last month and has been in a coma ever since. Her older sister, Savannah, can't pretend to be optimistic about it; things look bad. Piper will likely never wake up, and Savannah will never get any answers about what exactly happened.
But then Savannah finds a note in Piper's locker, inviting Piper to a meeting of their school's wilderness club…at the very place and on the very day that she fell. Which means there was a chance that Piper wasn't alone. Someone might've seen something.
