Crowley completists should note that the Beast is one of the adventurers profiled in a new book called Strange and Dangerous Dreams by one Geoff Powter. There is a decent review in the Lewisville, Kentucky, Courier Journal. I have not yet read this book, but it seems to focus on Crowley's mountaineering, which would make it rather interesting.
A couple of quotes from the review:
With the exception of Meriwether Lewis, none of the characters profiledin Geoff Powter's book "Strange and Dangerous Dreams: The Fine LineBetween Adventure and Madness" (Mountaineers Books, 256 pages,hardback, $22.95) are folks I'd care to camp with.
Others chronicled here include Solomon Andrée, who tried to pilot aballoon to the North Pole, sailor-of-sorts Donald Crowhurst, polarexplorer John Franklin, aviator Jean Batten, Aleister Crowley, would-bemountaineer Claudio Corti, Mount Everest dreamer Earl Denman and thetragic trio of Guy, Johnny and Bill Waterman.