Endless Things is the fourth and final installment in Crowley's Aegypt sequence.

Spanning three centuries, and weaving together the stories of Renaissance magician John Dee, philosopher Giordano Bruno, and present-day itinerant historian and writer Pierce Moffitt, the Aegypt sequence is as richly significant as Lawrence Durrell's Alexandria Quartet or Anthony Powell's Dance to the Music of Time. Crowley, a master prose stylist, explores transformations physical, magical, alchemical, and personal in this epic, distinctly American novel where the past, present, and future reflect each other.