"I tell you we both heard her groan," the poet insisted.

Jacob Potts rose to his feet.

"Boys," he said, addressing the belligerents, "and gents, there will be a ten minutes' interval. Sorry, but it's business. Joe will serve the drinks, which for this occasion only will be free."

The ten minutes' interval, softened by the promise of free drinks, displeased no one. Jacob Potts, still in his shirt-sleeves, strode out of the place, through the front room of the public-house and out into the street, where a queer, unnatural silence Seemed to reign.

"There ain't no woman about 'ere!" he exclaimed.

Aaron Rodd suddenly flashed his torch. The iron gate was closed. There was no one before it. They could hear the sound of men's footsteps a few yards away on the old wooden wharf.

"They've just gone through," Aaron whispered fiercely. "Come on!"

Jacob Potts produced a key from his pocket and swung the gate open.

"If you fellows have made a fool of me," he muttered, "there'll be trouble, but if my boys have let me in, there'll be hell!"

Just as he finished speaking they once more heard the faint, smothered cry from in front, followed by a man's oath. They saw the flashing of a light and heard the fall of a rope from the wharf into the river. Jacob Potts quickened his pace.