Diary of Endrelle Thullhammer can be found deep under the Korlayra mountains.
[As you open the diary, the last extract attracts your
Alas, I delayed here too long. The dark will of the spirit
of this strange crypt must have reanimated some of
the corpses around me. For before I knew it, I was
fighting for my life. I managed to kill the skeletal
horrors, but I cannot progress any further until I have
discovered how to reach the next room which I know
exists to the west.
I survived to write this only by finding a small hole in
one corner of the entrance to the crypt and now fear
that it will become my tomb. In fact, I am sure now
that I will once again feel the sun on my skin only if I
return from the underworld.