good point about Aravis, and of course the discourse with Emeth beyond the Stable Door.
I haven't read
Watchful Dragons, and by the time I wanted to, it was out of print. My exposure to the
Dark Tower controversy was second hand, through my friend Sheldon Vanauken (a student of Lewis). He knew the late Lewis scholar Kay Lindskoog, author of
The Lion of Judah in Never-Never Land (
http://www.lindentree.org/), and was aware of her research into the questioned stories. It's impossible to know, of course, but Van gave Lindskoog lots of credit for scholarship and believability. Unfortunately, the discussion seemed to deteriorate into a "Lindskoog vs. Hooper" personality dispute, with people taking sides, etc., while the actual questions got lost.
I do know this: I agree with Lindskoog and Vanauken that
Dark Tower doesn't seem like Lewis' style, and the fact that he hadn't mentioned the work to anyone else but Hooper seems odd, considering how open he was with his other works. That plus the embarrassment that Hooper put everyone through after Lewis' death, popping up and claiming to be his intimate personal secretary and bosom friend for years, only to have to backtrack under sharp criticism and admit that he barely knew Lewis and had only worked with him for a few months - in my book that makes Hooper a Suspicious Character.