The Facility is the first new elite dungeon you will encounter (keep in mind that each of the 5 normal dungeons you ran while getting to QL10 also have an elite mode with the exact same mechanics). The quest for it can be obtained at Besieged Farmlands although the entrance to it is located in Agartha like the rest of the elite dungeons. This dungeon is pretty rough for healers as you will need to heal through quite a lot of group damage in a short time. If you are running Blood Magic for heals, I definitely recommend picking up Cold Blooded, the elite active ability for this. Even though it has a 30 seconds cooldown, this heal saved my and my group’s butt more than a couple times. Think of it as groupwide Scarlet Arts with no resource cost.