"The one thing which alone can harm him; the one thing which alone can make it as if he had never placed Mr. Hareston with such great care and forethought aboard a slow fourteen-day boat for Brazil; the one thing which can bring back his description, and the evidence against him, and give it to the police as minutely and surely as though his victim were testifying before him in the dock! The one thing which gives him, not two weeks, but now less than one hour, to act and get under cover or find himself fast and secure in jail!"
"But what is that one thing, Mr. Dunneston?" the girl now bent forward brightly and demanded impatiently.
"Yes; what is that one thing he has forgotten?" the American repeated.
"What?" the Englishman echoed. "The 'wireless,' of course, Mr. Preston! The 'wireless'!"
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