Goetia: To the Power of Four

Not long ago, Mark Wylde (the driving force behind Starlight Books) asked me if I could develop a magical system linking the Ancient Spirits of the Goetia to the four elements of Earth, Air, Fire, and Water; and to the four seasons of Winter, Spring, Summer, and Autumn. The book you are now reading is the answer to that question. He also suggested the method by which the Magic could be seen to work, so this is very much a joint effort.