She was more puzzled than ever, but suddenly remembering that she had barely escaped being caught spying on these strangers, she rose and went gliding down the hill.

When she reached her reindeer she loosed him and turned him toward home, nor did she allow him to pause until he stood beside her igloo.

Once inside her lodge, with the candle gleaming brightly and a fire of dry willows snapping in the sheet-iron stove, Patsy took a good long time for thinking things through.

Somewhat to her surprise, she found herself experiencing a new feeling of safety. It was true she had not been much afraid since Marian had left her alone with the herders, for it was but a step from her igloo to Terogloona’s tent. This old herder, who treated her as if she were his grandchild, would gladly give his life in defending her from danger. Nevertheless, a little feeling of fear lingered in her mind whenever she thought of the tent of the purple flame. As she thought of it now she realized that she had lost that fear when she had discovered that there was a girl living in that tent.

“And yet,” she told herself, “there are bad women in Alaska just as there are everywhere. She might be bad, but somehow she didn’t look bad. She looked educated and sort of refined and—and—she looked a bit lonely as she stood there gazing at the stars. I wanted to walk right up to her and say ‘Hello!’ just like that, nice and chummy. Perhaps I will, too, some day.

“And perhaps I won’t,” she thoughtfully added a moment later. Something of the old dread of the purple flame still haunted her mind. Then, too, there were two puzzling questions: Why were these people here at all; and how did they live, if not off Marian’s deer?

Not many days later Patsy was to make a startling discovery that, to all appearances, was an answer to this last question.

CHAPTER XII
ANCIENT TREASURE

With a hand that trembled slightly, Marian held the candle that was to light their way in the exploration of the mysterious mountain cavern. As if drawn by a magnet, she led the way straight to the spot where but a few hours before she had been so frightened by finding herself standing in the burned out ashes and bones of an old camp-fire.

She laughed now as she bent over to examine the spot. There could be no question that there had once been a camp-fire here. There were a number of bones strewn about, too.