Two towers she passed before she came at last to the stream, and here again was she temperate, drinking but little and that very slowly, contenting herself with rinsing her mouth frequently and bathing her face, her hands, and her feet; and even though the night was cold, as Martian nights are, the sensation of refreshment more than compensated for the physical discomfort of the low temperature.  Replacing her sandals she sought among the growing track near the stream for whatever edible berries or tubers might be planted there, and found a couple of varieties that could be eaten raw.  With these she replaced some of the usa in her pocket-pouch, not only to insure a variety but because she found them more palatable.  Occasionally she returned to the stream to drink, but each time moderately.  Always were her eyes and ears alert for the first signs of danger, but she had neither seen nor heard aught to disturb her.  And presently the time approached when she felt she must return to her flier lest she be caught in the revealing light of low swinging Thuria.  She dreaded leaving the water for she knew that she must become very thirsty before she could hope to come again to the stream.  If she only had some little receptacle in which to carry water, even a small amount would tide her over until the following night; but she had nothing and so she must content herself as best she could with the juices of the fruit and tubers she had gathered.

After a last drink at the stream, the longest and deepest she had allowed herself, she rose to retrace her steps toward the hills; but even as she did so she became suddenly tense with apprehension.  What was that?  She could have sworn that she saw something move in the shadows beneath a tree not far away.  For a long minute the girl did not move—­she scarce breathed.  Her eyes remained fixed upon the dense shadows below the tree, her ears strained through the silence of the night.  A low moaning came down from the hills where her flier was hidden.  She knew it well—­the weird note of the hunting banth.  And the great carnivore lay directly in her path.  But he was not so close as this other thing, hiding there in the shadows just a little way off.  What was it?  It was the strain of uncertainty that weighed heaviest upon her.  Had she known the nature of the creature lurking there half its menace would have vanished.  She cast quickly about her in search of some haven of refuge should the thing prove dangerous.

Again arose the moaning from the hills, but this time closer.  Almost immediately it was answered from the opposite side of the valley, behind her, and then from the distance to the right of her, and twice upon her left.  Her eyes had found a tree, quite near.  Slowly, and without taking her eyes from the shadows of that other tree, she moved toward the overhanging branches that might afford her sanctuary in the event of need, and at her first move a low growl rose from the spot she had been watching and she heard the sudden