You won't believe what i've just found... just look at these pics:

http://www.file-upload.net/download-...BRINE.zip.html

(download the zip-folder and unzip it, it contains 12 pics of what i've seen)

here's what i've found out:
- they don't make any sounds
- they attack you when you come to close
- as you can see, they have no names but when you press F3 you can see numbers
- i came there through a tunnel that looked like made by a player...

wow... i don't know what to say now :O

EDIT: the server just crashed and i spawned in the admin area under the castle :O proof pic: