Then he leaned forward, and in the intense silence we were aware of the soft lapping of agitated water.

He seemed to be stirring up the moat with something which he held in his hand.

Then suddenly he hauled something in as a fisherman lands a fish--some large, round object which obscured the light as it was dragged through the open casement.
"Now!" cried Holmes.

"Now!" We were all upon our feet, staggering after him with our stiffened limbs, while he ran swiftly across the bridge and rang violently at the bell.

There was the rasping of bolts from the other side, and the amazed Ames stood in the entrance.