If I kill Firkraag when I first meet him will I miss any quests later in the game?

(I met him before I took the shadowthiefs up on the rescue mission)

Oh also where is a silver dragon to be found?

Um... yes. Definitely. Talk to him first, and kill him later. As for the silver dragon, its a spoiler.

Simple enough. Are you a paladin? If so, then the answer's yes, it can muck about with one of their stronghold quests (or so I've heard). The only silver dragon in the game is in the Underdark. I'll go out on a limb and assume you're asking for the sake of that human flesh armour. Take my word for it, it stinks, it's not even worth the battle against Adalon, not to mention the trouble killing her causes you quest-wise.

Armi, how much is Adalon worth?

A smooth 54,000 EP, a vial of blood, a scroll that (spoiler) just in case you (spoiler), and a POS greenstone ring. Why?

Umm... it's kind of pathetic compared to Firkraag... what's the scoll do and POS? Im all in for spoilers! I was just askin... I don't think Im going to never kill that pretty dragon...

A'ight, the idea is that if the Drow lock the gates after you swipe Adalon's eggs, Adalon comes and finishes the job (and you). If you kill her you get a scroll that opens Ust Natha's gates. It's a sort of failsafe. POS means piece of shit, which pretty adequately describes exactly what a greenstone ring is.

Sorry lads, but what quests do I lose (I'm a Ranger)

Considering you need to actually walk into Windspear Hills to get the quests it could possibly spoil, probably none.

Nice one - thanks