You hear an unsual sound

A sound quickly fills your ears and you look up. It's a rhythmic rush of air, almost like a giant bird flapping its wings.

Despite not seeing anything in the dim light you take no chances and run back to the edge of the clearing.

Just in time as well as a giant pair of wings with a very unusual body appears on the other side of the clearing above the tree tops.

"What the fuck is that!" you squeak.

The wings turn to face you but hover in the air for a few moments, allowing you to get a better look. The wings were massive, easily each longer than you are tall, and seemed to be held together with a network of loose ropes.

Some of the ropes began to move, as though they were swaying in the breeze.

But,

"There is no breeze.." You whisper. The ropes get longer and longer, until they appear to form the outline of a human.

"Oh crap," you groan and quickly take off running down the track.

Quick as a flash, the wings chase after you.