Bag of souls

Flickers of ember dance over the candle as the children dance and play. Little do they know what's creeping in the shadows. A dark creature, in fact a demon and he master. Hiding in the shadows waiting for the children to become tired, faint, weary.

As soon as the children fall asleep there is a cool breeze; the demon running through the room. The candles light goes out with one swift movement from the demon. 

At the sound of her masters voice the retrieves the souls of the young innocent children. When they awake they will be but a fraction of theirselves. They will fall apart, breaths weakening, bleeding internally.

But without a trace the demon and master leave with the souls.