Yes, King James VI of Scotland, later King James I of England, did indeed write a book titled "Daemonologie" (spelled with an 'a' rather than an 'o'. It was published in 1597 and is a treatise on the existence of witches and demons. The book discusses various aspects of witchcraft and the supernatural, including how to identify witches, their supposed powers, and the appropriate response to witchcraft. King James was particularly interested in the subject and was involved in witch trials during his reign. "Daemonologie" is an important historical document that sheds light on the beliefs and attitudes towards witchcraft in the late 16th century.