She kept a little silence, then said thoughtfully:

“How can I ever thank them, Allan? How can I thank them best?”

“You can't thank them. There's no way. I tried it, but they didn't understand. They only did what seemed natural to them. They're savages, remember; not civilized men. It's impossible to thank them! The only thing you can do, or I can do, is work for them now. The greatest efforts and sacrifices for these men will be small payment for their deed. And if--as I believe--the whole race is dowered with the same spirit and indomitable courage--the courage we certainly did see in the Battle of the Wall--then we need have no fear of our transplanted nation dying out!”

Much more there might have been to say, but now the meal was ready, and hunger spoke in no uncertain tones. All four of the adventurers ate in silence, thoughtful and grave, cross-legged, about the meat and drink, which lay on palm-leaves or in clay bowls hard-burned and red.

A kind of embarrassment seemed to rest on all, for this was the first time they had eaten together--these barbarians with the two folk of the upper world.

But the meal was soon at an end, and the prospect of labors to be undertaken cheered Allan's spirit. Despite his stiff and painful arm, he felt courage and energy throbbing in his veins, and longed to be at work.

“The very first thing we must do,” said he, “is fix up a place for our guests. They've got to stay here, out of the light, till nightfall. That will give us plenty of time. I want to get them settled in their own quarters, and bring them into some regular routine of life and labor, before they have a chance to get homesick and dejected.”

He warned the Merucaans to cover their heads with their cloaks while Beatrice and he opened the doorway.

He closed it then, with other rocks outside, and covered it with his own outer cloak; then, wearing only his belted tunic, he rejoined Beatrice half-way up the path to the cliff-top. Both were armed; he with his own automatic, she with the one they had found in the crypt.

“Our first move,” said he, “will be to transport the various things from the aeroplane. It will be something of a task, but I don't dare leave them out there on the barrens till night, when the men themselves could bring them in. The sooner we get things to rights the better.”