He pointed first toward the nearest carcass and then toward the rock-crushing, steadily snapping jaws.

"I'll try to hold the bridge here—"

But Dennis was on his way, catching Jim's idea with the first gesture.

He stooped down, and caught the dead termite by two of its legs. Close to two hundred pounds the mass weighed; but strength is an inconstant thing, and increases or decreases according to the vital needs of life-preservation.

Clear of the floor, Denny lifted the bulk, and with its repulsive weight clasped in his arms, he advanced toward the mighty guard.

Behind him, Jim glared desperately at the third termite that was about to attack. No feeble worker this, but one of the most colossal of all the Queen's guard.

Towering over Jim, mandibles wide open and ready to smash over its prey, the giant reared toward him. And behind him came the main body of the horde. It was painfully evident that the clash with the lone soldier would be the last single encounter. After that the hundreds of the herd would be on the men, tearing and trampling them to bits.

During the thing's steady, inexorable approach, which had taken far less time than that required to tell of it, Jim had clenched his fingers around his spear and calculated as to the best way to hold the monster off for just the few seconds needed by Denny to try the plan suggested.

The monster ended its slow advance in a lunge, that, for all its great bulk, was lightning quick. But a shade more quickly, Jim sidestepped the terrible mandibles, leaped back along the armored body till he had reached the unarmored rear, and thrust his spear home with all his force.