8 o'clock
In fact , the intruder seemed to have cleared it in a minute , either in a boat , which was improbable , or by swimming . The Sea Lion lay off the United States Navy Yard , on the west of Mare Island , in the straits of the same name . The nearest landing place on the mainland , therefore , was South Vallejo . It was after 8 o'clock when the boys reached the main street of the town and encountered a policeman in uniform . Ned at once asked for the office of the Coroner of Salano County . `` What 's doing ? '' asked the policeman .