I absolutely need to buckle down on this. Or maybe break it in half.
It took ten blocks and one hour for Nat to start feeling the thuds coming up from the ground, too. They were too irregular for machinery, and too powerful to be natural, which made both men automatically cautious and careful in their movements. Nat in particular knew that the Old Americans supposedly once said, If you don’t understand it, it’s dangerous. He had always privately thought that far too realistic to have really come from such a happy-go-lucky people, but truth was truth.
They also instinctively knew to be quiet. As they grew closer, the thudding from the ground had become a rattling in the walls, and the rattling was now a shivering of the earth. Whatever was here was not treading lightly.