Some people seem to be having the same problem as me- not getting the last hint from Korgan. He gave it once and then on subsequent replays remained silent.
If you are looking for the Book of Kaza, there's a spoiler below.

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Korgan's old friends are hiding out with a keg of beer on top the Copper Coronet. Go down to the Slums and climb up the leftmost set of steps to get them.

*bump*


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http://www.animfactory.com/animation...s/j_md_clr.gif

Is that the same book that you get by helping Korgan? If it is then I must've missed something because I'm down in some lair killing vampires and thats where he said it would be. He hasnt said anything except to enter the area...