five o'clock
Shaping their course carefully by the chart , and keeping on the alert to avoid passing vessels and steamers , they drove the _ Barracouta _ at top speed . Ten miles from Tarpaulin the increased height of the ocean swells told that they were crossing the shoal rocky ground of Snippershan . Five miles farther on they left behind the clanging bell on Bay Ledge and soon passed the red whistler south of Hurricane . A straight course from this brought them at five o'clock to the bell east of Monroe 's Island , and before six they were alongside the steamboat wharf at Rockland . `` Look out for her , boys ! '' directed Jim . `` I want to get up-town before the markets close . ''