"It will be murder," he said slowly.

Forrest shrugged his shoulders.

"You may call it so if you like," he answered. "Personally, I should not be inclined to agree with you. You will be alive when you go into the sea. If you cannot swim, the fault is not ours."

"And when, may I ask," Engleton continued, "do you propose to put into operation your amiable plan?"

"Just whensoever we please, you d—d obstinate young puppy!" Forrest cried, suddenly losing his nerve. "Curse your silent tongue and your venomous face! You think you can get the better of us, do you? Well, you are mistaken. You'll tell no stories from amongst the seaweed."

Engleton nodded.

"I shall take particular good care," he said, "to avoid the seaweed."

"Enough," Forrest declared. "Listen! Here is the issue. We are tired of negative things. To-night you sign the paper and give us your word of honour to keep silent, or before morning, when the tide is full, you go into the sea!"

"I warn you," Engleton said, "that I can swim."

"I will guarantee," Forrest answered suavely, "that by the time you reach the water you will have forgotten how."