Hikers Thought They Found An Abandoned House In A Crater, Until They Saw What It Really Was

Knock knock

Curious and uneasy, Andrew walked over, opened the glass window inward, and placed his hand flat against the cold, stone wall.

He knocked gently and was surprised to hear a hollow echo instead of the dull thud of packed earth. He pressed his ear closer, but the sound did not repeat. “What the hell?”