Re: AD
Eldon complies with Ivyain's request. First he tries to determine if the spell has taken hold requesting the orc's walk around the circumference of the dome. If one does but one doesn't or questions the other as to what he is doing, he know's he's only charmed one. At that stage he will suggest to the charmed orc it would be helpful to them all if he silenced his companion, for good.
If both do then everything is okay, and he'll begin to ask questions in regards to the total number of their force, though since Eldon has just escaped from them, perhaps he has first hand knowledge of how big their raiding party is himself, or if there is a larger force about.
He will then ask them/it how far it is to the nearest Hargenite out post, as well as the dam.
Once questioning is finished, and they are of no more use, (if there is two of them and unless the party does not see a need for a willing orc spy), he will suggest that they fight each other to prove who is the best.