For several years Yousuf Tilly worked with a warlock in South Africa who used the white magic to cure a variety of common and supernatural problems. Many incidents involved various types of jinns and other inter-dimensional creatures. Yousuf documented these cases while helping with the preparations and ceremonies. How dark and deep does the demon world reach? What kind of extreme powers do these demonic forces hold over the living when invited in? Is there ever a way to reverse a “deal” that is made with the demonic?