<b>In this edge-of-your-seat horror novel, a four-hour flight takes a nightmarish turn when a supernatural creature gives a group of high school students a sinister ultimatum.</b><br><br>Devon Marsh is haunted by secrets. Like the identity of the person who killed her twin sister, Emily, in a hit and run accident last Halloween, which Devon has vowed to uncover. Like the things Devon said to Emily just before she died.<br> <br>But she’s determined to start fresh when she boards a four-hour flight along with her classmates for their senior class ski trip. Devon never could have guessed those secrets would surface in the most terrifying way when a supernatural creature hijacks their flight and gives the students a deadly ultimatum:<br> <br>Choose one among them to sacrifice before the end of the flight. Or the plane will crash.<br> <br>As the clock ticks down, the creature slowly unearths the passengers’ deepest, darkest secrets—and reveals that one of th