Everfree Forest, where few ponies dare to tread. Many monsters are rumored to live there. Most rumors are true. Manticores, cockatrices, dragons, almost every creature imaginable can be found somewhere within the dark trees of the forest. But one creature has gone completely unknown for centuries. At least, mostly so. Two ponies throughout all of history ever saw the creature, and lived to tell nopony about it. One was an immortal alicorn princess, the other, a simple party-loving pink pony. But now, the creature is ready to make it's presence known. And none are safe.

After all, nopony can escape the Slendermane.