Alissa Skovbye

On August 12, 1967, in Montana's Glacier National Park, the unthinkable happened: that same night, nine miles apart, there were not one—but two—fatal grizzly bear attacks.

A misfit group of unwitting high school students stumble upon a cursed object, an ancient Aztec Death Whistle. They discover that blowing the whistle and the terrifying sound it emits will summon their future deaths to hunt them down.