Building a Perimeter

We are prepared to try to construct a perimeter around the village using the energy source taken from the blood elves. I can't guarantee that it will work, but we have to attempt it.$B$BOtherwise, the mana creatures will surely continue devouring the spirits of the fallen Kirin Tor.$B$BUse this device at the small runes around the perimeter of town to release the energy there. If I've woven the field correctly, we should start noticing a difference once you've used the device at each point.