[SnakePlissken]

Satan isn't a dreadful spirit of the underworld, he's basically a corrupted angel!

I get where you're coming from, but this kind of pedantic hair-splitting with a condescending tone doesn't advance the conversation. There's nothing "scarily wrong" about a reviewer from 1956 not being intimately familiar with the breadth and depth of Tolkien's canon.

[Ar-Curunir]

In fact, most of this background material only became available ~20 yrs after this article was published.

[taneq]

> Satan isn't a dreadful spirit of the underworld, he's basically a corrupted angel!

So, like Morgoth (aka Melkor of the Ainur) then.