"That's strange enough about the compass," said Barnett slowly. "Ours is all right again. The schooner must have been so near the electric disturbance that her instruments were permanently deranged."

"That would lend weight to the volcanic theory," said Carter.

"So the captain didn't take kindly to your go-look-see?" questioned Ives of Edwards.

"As good as told me I'd missed the point of the thing," said the ensign, flushing. "Perhaps he can make more of it himself. At any rate, he's going to try. Here he is now."

"Dr. Trendon," said the captain, appearing. "You will please to go with me to the schooner."

"Yes, sir," said the surgeon, rising from his chair with such alacrity as to draw from Ives the sardonic comment:

"Why, I actually believe old Trendon is excited."

For two hours after the departure of the captain and Trendon there were dull times on the quarter-deck of the Wolverine. Then the surgeon came back to them.

"Billy was right," he said.

"But he didn't tell us anything," cried Ives. "He didn't clear up the mystery."