nothing in the cave was harmed from the fire. Just the house.
Back when Fred Strunk and company were building their invisible fort, the local electric company was asked to install a much larger transformer than usually required by a residence. But once the growing operation began, Fred and his gang found to their dismay they still did not have enough electrical power to operate the grow lamps required to raise 1,000 marijuana plants at a time.
They were afraid to ask the electric company to install more power since this would be a very suspicious request without a "reason" to explain the greater need.
Afraid to risk exposure by making a second request, this left them with two choices: reduce the size of their operation or steal the needed electricity. They chose the latter path. The men spliced into the Tri-County Electric line and began to steal electricity