She sprang out of bed and began to dress in frantic haste, starting at every sound. She could not have explained what she intended to do or the reason for her haste. All she knew was that she must get out of the bedroom before Don Carlos returned.

Her hurried toilet completed, Myra with trembling fingers cautiously opened the bedroom door and peeped out. The rocky corridor was deserted, no sound came from the great cave, and the whole place seemed almost uncannily silent. With an effort of will Myra mastered her panic and tiptoed silently along the corridor towards the outer hall.

The corridor was lighted, but she found the hall, when she reached it, in darkness, save for one tiny light above the electric switch on the wall near the entrance. Myra pressed the switch and at once the apartment was flooded with light.

"Oh, God, help me to remember!" breathed Myra, after a swift glance around, to assure herself the place was untenanted. "Help me to get away—if only it is to die among the mountains."

She had watched Don Carlos closely a few hours previously as he manipulated the levers which opened the secret door when giving Standish his freedom, and the thought had flashed into her mind that she could manipulate the levers as he had done, and escape into the outer world.

Her first attempt was a failure, and she bit her lips in chagrin and hurt her delicate hands tugging vainly at various knobs and slides. But again and again she tried, and at last, when she was about to give up in despair, she heard a sudden click and the great door swung open!

CHAPTER XVIII

With a gasp of relief, Myra darted out, negotiated the narrow crevice which hid the door from view, and found herself in the open—and in brilliant sunshine. She paused for a moment, to collect herself, fancied she heard a noise behind her, and sped away like a startled doe.

There appeared to be no path, and she ran aimlessly and without the slightest sense of direction, clambering over rocks and slithering down slopes, several times narrowly escaping disaster, and once only escaping from plunging headlong over a precipice by clinging frantically to a boulder on the very verge. And the boulder, which must have been balanced like a logan stone, went crashing over the side of the precipice the moment she had released her hold on it and recovered her equilibrium.

Although she had, as it were, been courting death, Myra was so terrified that she could not proceed for several minutes, and she had to muster up all her courage to negotiate the perilous path. After that, she advanced with greater caution, and at last reached a little grassy plateau, a sort of oasis amid the bleak rocks, commanding a magnificent view of the mountain range and the country.