midnight
`` Yes , '' said Jimmie , `` an ' I 'll bet they 're makin ' more bombs -- bombs for the dam . '' At daybreak Frank Shaw stood in the screened porch facing west , watching and waiting for the return of Nestor and Jimmie . It had been a long night for him , but he had kept his vigil alone , knowing that his chums needed all the rest they could get . Many times between midnight and morning the noises of the tropical forest had taken on the semblance of human voices , and then he had crept out from the screens to listen intently for some indication of the approach of his friends . But they had not come , and now he was anxious to set out in search of them . While he stood there with his brain filled with forebodings of evil , he heard a step in the cottage , and then Jack Bosworth stood by his side , bright and exuberant of spirit after his long sleep . He stood silent for a moment , looking out into the wonderful jungle and then turned to Frank .