He rounded the corner into the alley, and was alone. He peered into the dark, squinting against the gloom.
Drawing his pistol, he crept through the narrow backstreet. He saw no doorways on either side and the alley ended in a high wall. The smell betrayed the presence of refuse hidden by the night. He reached the wall without incident. The strange man he had been chasing was nowhere to be found.
“Damnit!” he said, kicking a puddle of water, splattering it against the brick wall.
That wasn’t the first time one of them seemed to vanish into thin air.