Ok, so supposedly entry #42 was his "last entry" as it says at the bottom of the page (Dark Cultist)

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Q u o t e:
This is the last known writing of Abd al-Hazir. Known for his compilation of weird and wonderful facts about our unique world, he has unfortunately been missing since late last year.

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What's this? :

http://us.blizzard.com/diablo3/characters/demonhunter.xml

Entry #68? Ok, yeah there's a huge gap of 26 writings in there, but still...I wanna know what happen right now, lol.

Also, doesn't the demon hunter remind anyone of the main character of Demonsbane (can't think of his name atm)?

It should be entry 35. Thanks for pointing that out.