So the group has agreed to take on a challenge given by Varouga the cloud giant leader to eliminate an undead dragon. OK, all good on my end! Are you crazy?! If she can't take it out herself would you not consider it possibly stronger than her?
DM Speaks:
Maybe Varouga can defeat the dragon, but why take on the risk when she can get you to do it? Without giving too many hints I'd say that a post below has identified a major point with regards to Varouga!