Here is a very helpful, link-rich website on the Inklings group and their illuminating relevancy to the occult aspects of Neil Gaiman's text. As I suggested in lecture, Gaiman is clearly an admirer of the Inklings.
"It is a capital mistake to theorize before one has data. Insensibly one begins to twist facts to suit theories, instead of theories to suit facts." Sherlock Holmes. "....This is all a way of saying that Ogden is going to twist my theories to fit his facts."Clint Burnham.