CHAPTER VI.
AN ISLAND MYSTERY "Hullo, Hiram; where are you bound for ?" It was Rob who spoke, as Hiram hastened by his house in the early darkness.
"Oh, hullo, Rob," responded the other.

"I was wondering who that was hanging over the gate.

Why, I'm going to Paul's house.

I'm going to talk over that aeroplane model contest with him.

I think that we stand a chance to win if Jack Curtiss doesn't make good his boast." "What was that ?" inquired Rob.
"Oh, he says that he is going to build an aeroplane that will beat us all." "And have it ready in a week ?" was Rob's astonished query.
"That's what he says," responded Hiram.