For their last adventure before college pulls them apart, five friends hike deep into the Appalachians-into a stretch of backcountry locals avoid and maps refuse to name. There they find the entrance to Hymnfall Drift, a boarded-up mining tunnel rumored to have ended in a tragedy no one will talk about. Inside, something is wrong. The air tastes metallic. Their lights behave strangely. And somewhere in the dark, a low, impossible song rises from the stone... a sound that feels alive. Cut off from daylight and running out of flares, the group begins to sense they're not alone underground. Something listens. Something moves. And whatever haunts Hymnfall Drift doesn't want them to escape-only to join the song. As fear blooms and the shadows grow crowded, the friends must decide how far they'll go to protect each other... and how much of themselves they're willing to risk before the darkness decides for them. In Hymnfall Drift, light can save you-until it betrays you. And the song never stops.
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