But Drummond shakes his head. He wants to be the last man down.

"Don't hang on here, sir. Come now. Sure the others can get down from where they are easy enough, but you can't except when they're firing. Please come, sir," and Costigan in his eagerness scrambles to the lieutenant's side and lays a broad, red hand on his shoulder. The men have fired more than the designated number of shots and now are looking anxiously towards their commander. They do not wish to move until he does.

"Give 'em another whack all around, fellers," shouts Costigan, "while I help the loot'n'nt down;" and so, with a laugh, Drummond gives it up, and after one last wistful glance out over the desert, turns to pick up the binocular, when it is struck, smashed, and sent clattering down into the cañon by a shot fired not twenty yards away.

"Fur God's sake come quick, sir!" gasps Costigan. Then, desperate at his loved young leader's delay, the Irishman throws a brawny arm about him and fairly drags him to the end of the steep. Then down they go, Costigan leading and holding up one hand to sustain Drummond in case of accident. Down, hand under hand, to the accompaniment of cracking rifles and answering carbines, while every other second the bullets come "spat" upon the rocky sides, close and closer, until, panting, almost breathless, Costigan reaches the solid bottom of the gorge and swings Drummond to his feet beside him. Seeing their leader safely down, the men, with one defiant shot and cheer, scurry to the edge of the cañon, and come slipping and sliding to join their comrades. At the mouth of the cave Costigan strives to push Drummond in through the narrow aperture left for their admission, but miscalculates his commander's idea of the proprieties. Like gallant Craven at Mobile Bay, Drummond will seek no safety until his men are cared for. "After you, pilot," the chivalric sailor's last word as the green waters engulfed his sinking ship, finds its cavalry echo in Drummond's "After you, corporal," in this far-away cañon in desert Arizona. The men have scrambled through the gap, then Costigan, with reluctant backward glance, is hurried in just as a flash of flame and smoke leaps downward from the crest and the foremost Apache sends a hurried, ill-aimed shot at the last man left. Before another shot can follow, Drummond's arm is seized by muscular hands and he is dragged within the gap. Two or three huge stones are rolled into place, and in an instant through the ragged loop-holes the black muzzles of half a dozen carbines are thrusting, and Costigan shouts exultingly, "Now, you black-legged blackguards, come on if ye dare!"

But no Apache is fool enough to attack a strong position. Keeping well under cover, the Indians soon line the crest and begin sending down a rain of better-aimed bullets at the loop-holes, and every minute the flattened lead comes zipping through. One of these fearful missiles tears its way through Costigan's sleeve and, striking poor old Moreno in the groin, stretches him groaning upon the floor. A glance shows that the wound is mortal, and, despite his crimes, the men who bear him, moaning, in to the farther cave are moved to sudden sympathy as his hapless wife and child prostrate themselves beside his rocky bier. Drummond can afford to lose no more, and orders the lower half of each hole to be stopped with blankets, blouses, shirts, anything that will block a shot, and then for an hour the fire of the besiegers is harmless, and no longer can the besieged catch even an occasional glimpse of them. At noon their fire has ceased entirely and, even when breathing a sigh of relief, the men look into one another's faces questioningly. How long can this last? How hot, how close the air in the cave is growing!

Drummond has gone for a moment into the inner chamber, where Moreno is now breathing his last, to inquire for Wing and to speak a word of cheer to his fair and devoted nurses. Not one murmur of complaint or dread has fallen from their lips, though they know their father to have ridden on perilous quest and into possible ambush; though they know their brother to be lying at the ruined ranch, perhaps seriously wounded; though their own fate may be capture, with indescribable suffering, shame, and death. Fanny Harvey has behaved like a heroine, as the two troopers remarked, and Ruth has done her best to follow her sister's lead. Yet they, too, now realize how close and stifling the heavy atmosphere is growing. Is it to be black hole of Calcutta over again? Even as he takes her hand in his Drummond reads the dread in Ruth's tearless face. Even as he holds it and whispers words of hope and comfort there is a heavy, continuous, crashing sound at the mouth of the cave, just in front of the rock barricade, and he springs back to learn the cause.

"They're heaving down logs and brushwood, sir," whispers Costigan. "They mean to roast us out if they can't do anything else."

More thunder and crash; more heaping up of resinous logs from the cliffs above them. Some of the men beg to be allowed to push out and die fighting, but Drummond sternly refuses. "At the worst," he says, "we can retire into the back cave; we have abundant water there. The air will last several hours yet, and I tell you help will come,—must come, before the day is much older."

Two o'clock. Hissing flames and scorching heat block the cavern entrance. The rocky barrier grows hotter and hotter; the air within denser and more stifling. The water in the canteens and pails is no longer cool. It is hardly even cooling. The few men who remain with Drummond in the front of the cave are lying full length upon the floor. The pain in Drummond's battered head has become intense: it is almost maddening. Wing is moaning and unconscious. Walsh is incoherent and raving. All are panting and well-nigh exhausted. The front of the cave is like an oven. Overcome by the heat, one or two of the men are edging towards the inner cave, but Drummond orders them back. To the very last the lives of those fair girls must be protected and cherished. In silence, almost in desperation, the men obey, and lie down again, face downward, their heads at the rear wall of the cave.

And then Costigan comes crawling to the lieutenant's side,—