The Rotten King had needed some lackeys, and he had a soft spot for those who had fallen from a great height, being Humpty Dumpty and all.
For my first Grimm campaign, they would go to Grimm in their dreams.
Nox Vidmate VLC
For my upcoming Grimm campaign, they are all exploring a haunted house that belonged to a woman who had become famous for turning fairy tales into poems and publishing them with beautiful illustrations. Upon her death, her house began to suck children into the dark fairy tale world.