Vaieund book on Octarch chess quest

1) "can i help you"
2) "yes"
3) go to Jayose and tell him "about Octarch's chess", then "yes"
4) go to Lori Tryllyn and tell her "about missing book"
5) go to Durok Rrecrok and tell him "Lori sent me"
6) go to Terea Lohdren and tell her "Durok sent me"
7) go to Zak (a rouge in Laanx dungeon) and tell him "Terea saw you". The answer is "for wounds".
8) go to Jayose and give him the book
9) return to Vaieund and give him the book

Reward: a Keyhandled dagger, 3500 Exp