The Feywild was an alternate plane to the Prime Material Plane, where the main events took place. It was a sort of mirror world, almost like a parallel dimension, where things were the same but slightly different.
The Tower of Grey, upon learning of the disappearance of Prince Thom Harper, searched his room for clues, and discovered a device attuned to the Feywild. They prepared themselves, then traveled there in search of the missing prince. There, they discovered tracks that ended there, and decided to follow them back to where the tracks came from. Along the way, they discovered a spider web with bodies in it, one of which was squirming. Before they had a chance to rescue the person, they were attacked by giant spiders.
- Like the Upside Down, but with fairies