The thought was food and drink to his strength. Once she was safe, the worst was passed; and Storm and he, surely, could hold this narrow way till no pursuit could reach her.

Once more he fell to hammering wherever the blue-grey moonlight showed a crack, but the reward was long in coming; and, as he rested for a moment from sheer lack of breath, Storm broke the quiet with a low, purring growl.

No ghosts were troubling the sheep-slayer now, So much was plain. His hide was stiff, not with dread, but with eagerness to be at the throat of some menace threatening from behind.

Hardcastle quietened him with one sharp whisper, and took the gun from Causleen’s hands. Then he pushed his fowling-piece into the gloom, and waited.

Twice Storm growled, so low that Hardcastle could scarcely catch the note. And still they waited—bond-brothers, side by side—for what was coming through the stealthy dark.

Then Hardcastle felt a bulk of flesh steal against the muzzle of his gun, and plucked the trigger. The back-throw—not of the butt against his shoulder, but the answering uproar of the cave’s low roof—drove him staggering back.

Two had come against them, it seemed. He heard Storm’s eager yelp, a man’s sudden scream of anguish, and an answering howl from Storm. And then there came a din of falling rocks, a rush of clean, cold wind that brought a flood of moonlight with it.

“Are you safe, Causleen?” he cried through his dizziness.

A low voice answered. “That was your first thought? Yes, I’m safe, Dick—doubly safe.”

Her touch made light of hardship. Two more of Nita’s men were blocking the cavern behind them with their dead, ill-kempt bodies, and there was time enough now to hack a way through for Causleen and himself.