A grimoire allegedly based on material prepared by John Dee. It is presented as the long-lost grimoiric counterpart to Dee's well-known Enochian material and is said to deal with Demonic rather than Angelic forces. The editor states that the text itself is that of a previously unknown work by Dee, a printed version of which had been produced for Sir Francis Dashwood (Hellfire Club) in the eighteenth century by one Jeremiah Hobbs. Though the editor believes that the work is an authentic part of the Dee canon, there are no references to the work in any of the standard Dee scholarship, and no copies of the 'privately-printed edition' can be traced. Regardless of the origin of this work it is still a very interesting grimoire in the same style and tradition of Dee's Enochian work.