"What now?" demanded Orissa.
"I was thinking of the consternation on shore at about this moment," explained Miss Cumberford. "Won't they be amazed to see us continue this course, beyond the island? Not understanding our trouble, Daddy will think we're running away."
"So we are," replied Orissa. "I wish I knew where we are running to."
"I suppose we can't stop till the gasoline gives out," said Sybil.
Orissa shook her head.
"That's what scares me," she admitted. "Even now the Mexican shore is a mere line at the left. We're gradually diverging to a point farther out at sea, and when at last we alight, drained of the last drop of gasoline, how are we to run the boat back?"
"We can't. Steve's wonderful Hy will become a mere floating buoy on the bosom of the rolling blue," responded Sybil lightly. "Oh, I'm so glad I came, Ris! I'd no idea we were going to have such fun."
Orissa did not return her chum's smile.
"Sit still and balance her, Sybil," she said. "I'm going to make an investigation."