Homeowner Finds Warm Spot in Backyard Snow, Then Realizes Why It’s There

A vast network

Bill kept walking, feeling the tunnel grow wider and noticing that it branched off in different directions. Some paths went left, while others curved away sharply to the right.

Bill was surprised at how big it all was, realizing that this tunnel system was affecting his whole neighborhood. “We’re all in danger of sinking into the ground.”