Eldrin goes to the command center of the Frostwarden Scouts and talks to some of the people at the desk to at least float the idea and see if they will do what he wishes.

This hasn't been proven. But I would like to test a theory with the help of the Wardens and Vanguard. If there is another Egg attack after it's over could you please thoroughly search the area for the symbol of Thyrss. I believe the cultist that had summoned the undead into the inn with one of those could be planting more of them to lead where the corruption throws those eggs too. I know that it is often chaotic after such fights, but if I'm right it may help us slow or stop the attacks in the future.

Sereth comes out and listens to the proposal from the desk sergeant then looks at one of the wall scouts

We checked the last two, didn't we?

The scout nods

Find anything?

The scout shakes his head

Sereth looks back at Eldrin

We appreciate the suggestion, though it is something we're already doing. Your archmage is looking into the eggs at this time. As for the Inn, we have a lead, finally, and have handed it over to the Vanguard to follow-up on.