From the hook of the block was a bo's'un's chair. On this the rogue adroitly took his seat, and instantly let go. So cunningly had he laid his plans that he had omitted no detail to ensure success, for the sheave made no sound as the block descended the bight of the hawser, showing that he had not forgotten to oil the large lignum-vitae roller.
"Wait till he reaches the middle of the slack," ordered the captain. Then, having ascertained by the aid of his glasses that the fugitive was dangling a few feet from the water midway betwixt the Olive Branch and the German vessel, he whipped out a knife and proceeded to sever the hawser.
"Good heavens!" muttered Jack Stockton under his breath. "It's murder!"
"No fear; he'll only get a ducking. They'll haul him inboard by means of the whip," replied Gerald. "Stand by and look out for the hawser when she goes."
The warning had hardly been given when the last strands of the stout cable snapped, the inboard portion flying across the deck. Then, like a greyhound released from its leash, the Olive Branch darted off into the darkness.
"Pass the word for the searchlight to be run," ordered Captain Brookes. "Hard a-starboard with the helm."
Round spun the cruiser. Her giant beams swept the gently heaving water, and revealed the tramp, like a silver bark, lying well-nigh motionless a couple of miles away on the starboard bow.
"That will do. Keep yonder craft in sight," continued Captain Brookes. "Now gentlemen, we'll retire. To-morrow morning I'll finish up this business."
At daybreak Gerald went on deck, eager to learn the state of affairs, and found that Captain Brookes had already forestalled him.
Less than a mile away was the German vessel. Her crew had taken the severed cable on board, and had doubtless discovered that the parting of the tow-rope was caused by a deliberate act, for they had hoisted a staysail and trysail, and were heading slowly S.S.W.