I picked up a Donald M. Grant book last week of some
interest. The title was something like AS IT IS WRITTEN...
Upon further examination, I discovered that the source
material had come from a lost issue of Thrill Book, and
was credited to an author of unfamiliar name. The editors
felt this name was a pseudonym of CAS, at the time. I was
wondering if any further data has come to light about this
book, and whether it can be any more certainly attributed
to the pen of CAS.

--Earl P. Dean

Not by CAS: [www.eldritchdark.com]