directly back to Boston."

This was good reasoning, but the rash youth had no idea he was speeding over the ocean, or that he was destined to arrive shortly at the barbarous island of Brava, off the coast of Africa. Yet such was the case; just as the sun sank over the edge of the waves he saw, to his great relief, a large island directly in his path.

He dropped to a lower position in the air, and when he judged himself to be over the center of the island he turned the indicator to zero and stopped short.

The country was beautifully wooded, while pretty brooks sparkled through the rich green foliage of the trees. The island sloped upwards from the sea-coast in all directions, rising to a hill that was almost a mountain in the center. There were two open spaces, one on each side of the island, and Rob saw that these spaces were occupied by queer-looking huts built from brushwood and branches of trees. This showed that the island was inhabited, but as Rob had no idea what island it was he wisely determined not to meet the natives until he had discovered what they were like and whether they were disposed to be friendly.

So he moved over the hill, the top of which proved to be a flat, grass-covered plateau about fifty feet in diameter. Finding it could not be easily reached from below, on account of its steep sides, and contained neither men nor animals, he alighted on the hill-top and touched his feet to the earth for the first time in twenty-four hours.

The ride through the air had not tired him in the least; in fact, he felt as fresh and vigorous as if he had been resting throughout the journey. As he walked upon the soft grass of the plateau he felt elated, and compared himself to the explorers of ancient days; for it was evident that civilization had not yet reached this delightful spot.

There was scarcely any twilight in this tropical climate and it grew dark quickly. Within a few minutes the entire island, save where he stood, became dim and indistinct. He ate his daily tablet, and after watching the red glow fade in the western sky and the gray shadows of night settle around him he stretched himself comfortably upon the grass and went to sleep.

The events of the day must have deepened his slumber, for when he awoke the sun was shining almost directly over him, showing that the day was well advanced. He stood up, rubbed the sleep from his eyes and decided he would like a drink of water. From where he stood he could see several little brooks following winding paths through the forest, so he settled upon one that seemed farthest from the brushwood villages, and turning his indicator in that direction soon floated through the air to a sheltered spot upon the bank.

Kneeling down, he enjoyed a long, refreshing drink of the clear water, but as he started to regain his feet a coil of rope was suddenly thrown about him, pinning his arms to his sides and rendering him absolutely helpless.

At the same time his ears were saluted with a wild chattering in an unknown tongue, and he found himself surrounded by a group of natives of hideous appearance. They were nearly naked, and bore spears and heavy clubs as their only weapons. Their hair was long, curly, and thick as bushes, and through their noses and ears were stuck the teeth of sharks and curious metal ornaments.

These creatures had stolen upon Rob so quietly that he had not heard a sound, but now they jabbered loudly, as if much excited.

Finally one fat and somewhat aged native, who seemed to be a chief, came close to Rob and said, in broken English:

"How get here?"

"I flew," said the boy, with a grin.

The chief shook his head, saying:

"No boat come. How white man come?"

"Through the air," replied Rob, who was rather flattered at being called a "man."

The chief looked into the air with a puzzled expression and shook his head again.

"White man lie," he said calmly.

Then he held further conversation with his fellows, after which he turned to Rob and announced:

"Me see white man many times. Come in big boats. White man all bad. Make kill with bang-sticks. We kill white man with club. Then we eat white man. Dead white man good. Live white man bad!"

This did not please Rob at all. The idea of being eaten by savages had never occurred to him as a sequel to his adventures. So he said rather anxiously to the chief.

"Look here, old fellow; do you want to die?"

"Me no die. You die," was the reply.

"You'll die, too, if you eat me," said Rob. "I'm full of poison."

"Poison? Don't know poison," returned the chief, much perplexed to understand him.

"Well, poison will make you sick—awful sick. Then you'll die. I'm full of it; eat it every day for breakfast. It don't hurt white men, you see, but it kills black men quicker than the bang-stick."

The chief listened to this statement carefully, but only understood it in part. After a moment's reflection he declared:

"White man lie. Lie all time. Me eat plenty white man. Never get sick; never die." Then he added, with renewed cheerfulness: "Me eat you, too!"

Before Rob could think of a further protest, his captors caught up the end of the rope and led him away through the forest. He was tightly bound, and one strand of rope ran across the machine on his wrist and pressed it into his flesh until the pain was severe. But he resolved to be brave, whatever happened, so he stumbled along after the savages without a word.

After a brief journey they came to a village, where Rob was thrust into a brushwood hut and thrown upon the ground, still tightly bound.

"We light fire," said the chief. "Then kill little white man. Then eat him."

With this comforting promise he went away and left Rob alone to think the matter over.

"This is tough," reflected the boy, with a groan. "I never expected to feed cannibals. Wish I was at home with mother and dad and the girls. Wish I'd never seen the Demon of Electricity and his wonderful inventions. I was happy enough before I struck that awful Master Key. And now I'll be eaten—with salt and pepper, probably. Wonder if there'll be any gravy. Perhaps they'll boil me, with biscuits, as mother does chickens. Oh-h-h-h-h! It's just awful!"

In the midst of these depressing thoughts he became aware that something was hurting his back. After rolling over he found that he had been lying upon a sharp stone that stuck out of the earth. This gave him an idea. He rolled upon the stone again and began rubbing the rope that bound him against the sharp edge.

Outside he could hear the crackling of fagots and the roar of a newly-kindled fire, so he knew he had no time to spare. He wriggled and pushed his body right and left, right and left, sawing away at the rope, until the strain and exertion started the perspiration from every pore.

At length the rope parted, and hastily uncoiling it from his body Rob stood up and rubbed his benumbed muscles and tried to regain his lost breath. He had not freed himself a moment too soon, he found, for hearing a grunt of surprise behind him he turned around and saw a native standing in the door of the hut.

Rob laughed, for he was not a bit afraid of the blacks now. As the native made a rush toward him the boy drew the electric tube from his pocket, pointed it at the foe, and pressed the button. The fellow sank to the earth without even a groan, and lay still.

Then another black entered, followed by the fat chief. When they saw Rob at liberty, and their comrade lying apparently dead, the chief cried out in surprise, using some expressive words in his own language.

"If it's just the same to you, old chap," said Rob, coolly, "I won't be eaten to-day. You can make a pie of that fellow on the ground."

"No! We eat you," cried the chief, angrily. "You cut rope, but no get away; no boat!"

"I don't need a boat, thank you," said the boy; and then, as the other native sprang forward, he pointed the tube and laid him out beside his first victim.