Gulavhar, the Terror of Arnor (and other assorted beasties?)

[ninja91]

I was browsing through Games Workshop's Lord of the Rings miniatures when I came across this:

http://www.games-workshop.com/gws/ca...GameStyle=lotr

Gulavhar is a being from an earlier time that should have perished long ago - a winged demon with a hunger for blood. How he came to survive the terrible wars against Morgoth will never be known, yet survive he did, sleeping through countless centuries.

"Gulavhar, the Terror of Arnor", it is named. Obviously it is merely a creation of Games Workshop itself. And I am sure many here dont appreciate these "expansions" to the legendarium, and although I partly agree, I also think that these creations are very interesting.

Any thoughts? Also, has anybody seen or heard, or even thought, of an ancient monster lurking somewhere in the corners of Tolkien's world which was not specifically named in the books? Taking in how ancient, mysterious, and vast the lands of Middle Earth and its fellow continents were, who knows what walked the earth beyond Tolkien's published lore?