“The apparatus works beautifully,” he informed his aunt; “the deeper one got the clearer everything grew. We found something in the way of a sunken wreck to operate on, too!”

“A wreck in Innisgluther Bay!” exclaimed Lulu.

“A submerged motorboat, the Sub-Rosa ,” said Vasco.

“No! really?” said Lulu; “poor Billy Yuttley’s boat. I remember it went down somewhere off that coast some three years ago. His body was washed ashore at the Point. People said at the time that the boat was capsized intentionally⁠—a case of suicide, you know. People always say that sort of thing when anything tragic happens.”

“In this case they were right,” said Vasco.

“What do you mean?” asked the duchess hurriedly. “What makes you think so?”

“I know,” said Vasco simply.