Instead, he waited, and as the mucker came on an even footing with him Mallory swung a vicious right for the man’s jaw.  Byrne ducked beneath the blow, came up inside Mallory’s guard, and struck him three times with trip-hammer velocity and pile-driver effectiveness—­once upon the jaw and twice—­below the belt!

The girl, clinging to the rail, riveted by the paralysis of fright, saw her champion stagger back and half crumple to the deck.  Then she saw him make a brave and desperate rally, as, though torn with agony, he lurched forward in an endeavor to clinch with the brute before him.  Again the mucker struck his victim—­quick choppy hooks that rocked Mallory’s head from side to side, and again the brutal blow below the belt; but with the tenacity of a bulldog the man fought for a hold upon his foe, and at last, notwithstanding Byrne’s best efforts, he succeeded in closing with the mucker and dragging him to the deck.

Here the two men rolled and tumbled, Byrne biting, gouging, and kicking while Mallory devoted all of his fast-waning strength to an effort to close his fingers upon the throat of his antagonist.  But the terrible punishment which the mucker had inflicted upon him overcame him at last, and as Byrne felt the man’s efforts weakening he partially disengaged himself and raising himself upon one arm dealt his now almost unconscious enemy a half-dozen frightful blows upon the face.

With a shriek Barbara Harding turned from the awful sight as Billy Mallory’s bloody and swollen eyes rolled up and set, while the mucker threw the inert form roughly from him.  Quick to the girl’s memory sprang Mallory’s recent declaration, which she had thought at the time but the empty, and vainglorious boasting of the man in love—­“Why I’d die for you, Barbara, and welcome the chance!”

“Poor boy!  How soon, and how terribly has the chance come!” moaned the girl.

Then a rough hand fell upon her arm.

“Here, youse,” a coarse voice yelled in her ear.  “Come out o’ de trance,” and at the same time she was jerked roughly toward the companionway.

Instinctively the girl held back, and then the mucker, true to his training, true to himself, gave her arm a sudden twist that wrenched a scream of agony from her white lips.

“Den come along,” growled Billy Byrne, “an’ quit dis monkey business, or I’ll sure twist yer flipper clean off’n yeh.”

With an oath, Anthony Harding sprang forward to protect his daughter; but the butt of Ward’s pistol brought him unconscious to the deck.

“Go easy there, Byrne,” shouted Skipper Simms; “there ain’t no call to injure the hussy—­a corpse won’t be worth nothing to us.”

In mute terror the girl now permitted herself to be led to the deck below.  Quickly she was lowered into a waiting boat.  Then Skipper Simms ordered Ward to search the yacht and remove all firearms, after which he was to engage himself to navigate the vessel with her own crew under armed guard of half a dozen of the Halfmoon’s cutthroats.