For many hundreds of years, a beautiful girl lay in a deep cave beneath the earth. Besides magnificent decorations of gold and silver and precious coins, archaeologists expected to find something no less significant: a white, smooth, exquisite, and very sharp sickle with a beautiful ornament on the handle. But it wasn’t possible to take the historical treasures from the shores of Lake Ladoga—the Great Patriotic War began and ruined all plans. Years went by, and the crates with the most ancient finds stayed in the cave until, finally, modern treasure hunters appeared on the Black Lake. For the sisters Vika and Tasa, who hate each other, it’s nothing to disturb the remains of the dead… But they didn’t even imagine that they would wake the spirit of the merciless pagan goddess Kalma. She has no intention of handing over her favorite sickle to anyone—and many heads will roll at the altar of death; the harvest will be abundant…