Sir Henry held Lessingham in a grip of iron, or he would have been swept overboard.
"Get one arm through the chains, man," he shouted.

"My God!" he added, peering through the gloom.

"Lessingham!" "Well, don't stop to worry about that," was the fierce reply.

"Let's get on with our job." Sir Henry threw off his oilskins and his underneath coat.
"Follow me when they wave the lantern twice," he directed.

"If we either of us get the knock--well, thanks!" Lessingham felt the grip of Sir Henry's hand as he passed him and went overboard into the darkness.