eleven o'clock
An ' would they believe him , think ? '' Trove began to look troubled as Darrel left him . `` I 'll go and drop them in the river , '' said Trove to himself . It was eleven o'clock and the street dark and deserted as he left his room . `` It is a cowardly thing to do , '' the young man thought as he walked slowly , but he could devise no better way to get rid of them . In the middle of the big , open bridge , he stopped to listen . Hearing only the sound of the falls below , Trove took the odd tools from under his coat and flung them over the rail .