From the introduction: Welcome to the Dread Domains! They lurk in the shadows. They linger in your dreams. They come under the cover of darkness. They are the foul creatures that dwell in Ravenloft, the mysterious Demiplane of Dread, and they are waiting for you. From the dreamstalking bastellus to the body-snatching doppelgänger plant, this horrific tome contains a great assortment of creatures that will haunt the nightmares of your players and player characters for years to come.