I had the same thing happen when we first moved to our house in the mountains and at that time I had only 5 dogs. One of them was Keisha my wolf hybrid who could run like the wind and it was pitch black out and I really had a hard time finding her as the mountains were her territory! I found her by listening for her strange howl when I would call her name. I know how frightening an ordeal it can be and I am glad all of your gang got back home safely!!!