In the midst of the tussle another figure made its appearance.

“Look out!  Here comes Dulnop” [Footnote:  It made no difference whatever as to what language was used.  The telepathic process employed enabled the investigators to know all that their agents’ subconscious minds took in.  The brains of the four automatically translated these thought-images into their own language.  However, this method did not enable them to learn what their agents were thinking, but only what they said, heard, and saw.] cried Kinney’s agent; at the same time she made a special effort, and succeeded in breaking off a good half of the branch.

Instantly she darted to one side, where she calmly began to pluck some small, hard-shelled nuts from the branch, and proceeded to crack them, with entire ease, using a set of teeth which must have been absolutely perfect.

She gave the latest comer only a glance or two.  He—­for it certainly was a man—­was nearly a half a foot taller than the girl already described; but he was plainly not much older or younger, and in build and color much the same.  He was clothed neither more nor less than she, the only difference being that some leopard-like animal had contributed the material.  In his belt was tucked a primitive stone hammer, also a stone knife.  His face was longer than hers, his eyes darker; but he was manifestly still very boyish.  Dulnop, they had called him.

“Hail, Cunora!” he called to the girl who had brought the nuts; then, to her who was watching:  “Rolla!  Where got ye the nuts?”

Rolla didn’t answer; she couldn’t use her mouth just then; it was too full of nuts.  She merely nodded in the direction of Cunora.

“Give me some, Cunora!”

The younger girl gave no reply, but backed away from him as he approached; her eyes sparkled mischievously and the doctor thought, somewhat affectionately.  Dulnop made a sudden darting move toward her branch, and she as swiftly whirled in her tracks, so that he missed.  However, he instantly changed his mind and grasped the girl instead.  Like a flash he drew her to him and kissed her noisily.

Next second he was staggering backward under the weight of her hard brown fist.  “Do that again, and I’ll have the hair out of thy head!” the girl screamed, her face flaming.  Yet Kinney saw that the man was laughing joyously even as he rubbed the spot where her blow had landed, while the expression of her eyes quite belied what she had said.

Not until then did the doctor’s agent say anything.  When she spoke it was in a deep, contralto voice which gave the impression of riper years than either of the other two.  Afterward Kinney learned that Rolla was nearly ten years their senior, a somewhat more lithe specimen of the same type, clad in the skin of what was once a magnificent goat.  She carried only a single small knife in her belt.  As seen reflected in pools of water, her complexion was slightly paler and her whole expression a little less self-assertive and distinctively philosophical.  To those who admire serious, thoughtful women of regular feature and different manner, Rolla would have seemed downright beautiful.