Fire companies from West Virginia and Maryland were still on the scene late Thursday night of a house fire north of Shepherdstown.
John Lehman, the homeowner at 3953 Shepherd Grade Road, said no one was home when the blaze started.
Lehman said the home had recently been put on the market, and he and his family had lived there for about a year.
As best he could determine while standing in the pouring rain, it looked like the fire started in a back corner of the house, Lehman said.
"They haven't told me anything yet," he said of firefighters who were still working at the scene at 11 p.m.
However, he said firefighters said they believed there could still be fire in the attic or at the top of the house.
"We were getting ready to sell it, and here we go with this," as he watched the scene.
"What do you do?" he asked.
Lehman said he believed lightning could have caused the fire.