nissa: I wouldn't mind getting a hint about the eyes of Arachas, and the answer to the question below either.
ManicMunchkin: Also *** SLIGHT SPOILER *** can this quest be completed without harming a certain heavily carousing bridge repaircreature?
Complete spoiler:
The craftsman in the village has a troll head mounted on his wall, you can win it by completing the poker quest then saying 'I hear you make traps', then 'I'll take the head'. You need to have asked him about the troll head first as part of the troll quest.
As part of the main quest line you will meet the scoia'tel leader, before he turns up you must defeat the Arachas. In order to loot the Arachas at the end of the conversation you need to say 'I'm not ready yet'. Remember if you load up a game after it's been killed the loot will have de-spawned so if you reload go to a point before you killed the Araches.