They were exploring the ruins of a castle, and then she saw it. Twilight Sparkle was the first to see it, a white blur passing through a doorway, accompanied by a low growl and a thump, thump, thump. Though soon, they all began to notice, and they all began to fear whatever it was. After the fright died down, she heard it again, though closer.

A thumping on the door, it grew into a banging sound. Their heads started to hurt and they began to pass out, one by one.

Finally, she picked herself up with hooves shaking, the light coming in from the cracks is the only light source. She was not in the room she passed out in. She was in a room with an archway and a door. She chose the door, she channeled what energy she had to her horn. A purple aura appeared around the rusty metal handle and the door began to swing open..