Published this passed July by the Routledge, Taylor and Francis, Histories of Egyptology includes the chapter “Studies in Esoteric Syntax: The Enigmatic Frieldship of Aliester Crowley and Battiscombe Gunn, authored by Steve Vinson and Janet Gunn, the latter being Battiscombe granddaughter. The chapter examines the seldom discussed relationship between the prominent Victorian-era Eqyptologist and the Prophet of the Lovely Star.
http://www.routledge.com/books/details/9780415843690/
Not inexpensive, the tome can be rented for Kindle
http://www.amazon.com/Histories-Egyptology-Interdisciplinary-Measures-Routledge/dp/0415843693
