[CHAPTER IV]
THE ALUMINUM CHEST

Orissa realized quite perfectly that Sealskin Island was much farther away from the mainland than it appeared, so on leaving the shore she pursued a direction straight west for several miles, intending to make a turn and proceed south to the island which was the terminus of her flight. That prolonged the trip somewhat, but she figured it would prove more interesting to the spectators, since for a part of the journey she would be flying parallel with the coast. On the return she planned to run straight back from the island.

When she decided they had reached a point about as far out as was the island, she attempted to make the turn—a mere segment of a circle—but in spite of Steve's warning Orissa was surprised at the stiffness of the steering gear. The engines were working beautifully and developing excellent speed, but the girl found she must apply all her strength to the wheel to make the turn.

She succeeded, and brought the head to bear directly upon the island, but the gear grated and stuck so persistently that Orissa's effort sent the entire craft careening at a steep angle. Sybil gave a gasp and clung to the supporting rods and both girls heard a loud "chug" that indicated something was wrong; but the Kane balancing device was so perfect that almost immediately the machine righted itself and regained its equilibrium, darting swiftly and in a straight line in the direction of the island.

"What was it?" asked Sybil, putting her head close to Orissa's to be heard above the whir of the motors behind them.

"The steering gear binds; that's all," was the quiet response. "I think it will work better when we are in the water."

"But what made that noise? Didn't something give way?" persisted Sybil.

"Glance behind us, dear, and see."

Sybil carefully turned so as to examine the parts of the aëroplane.