CHAPTER V A TROPICAL STORM
“What’s all this?” exclaimed Grant, startled by the sudden change that had come over the boat.
The four boys looked about them in surprise, unable to account for the transformation. Petersen was forgotten; jewels and treasure were forgotten; even the strange code was forgotten and Grant absent-mindedly thrust it into his trouser’s pocket.
“What is it, do you suppose?” he exclaimed again.
“Look over there and you’ll see,” said Fred.
He pointed to the westward and as his three friends gazed in the direction he had indicated they soon saw the cause of all the commotion. Far off on the western horizon appeared a cloud. That in itself was no special reason for alarm, but it was a very peculiar looking cloud. It was grayish-black in color and shaped like a funnel
