The Nentir Vale is Doomed
Nervous and high-strung, Crowley does not make for an imposing figure. But deep beneath that paranoia lays a calculating mind capable of many things. Crowley met our heroes while trapped in what appeared to be a small mansion accompanied by a small town, but appearances belied the place’s true nature: a small part of the Shadowfell called a Domain of Dread. However Crowley had managed to proffer a deal for his escape, and with the unknowing help of our heroes his plans came to fruition.
As a Dread Lord, Crowley spent six hundred years in his own personal hell. Six hundred years can change anyone.