six o'clock
he called . This was serious . Within a few minutes the course ought to be altered to due south . The usual four knots of the _ Kalkis _ had been exceeded owing to the smoothness of the sea , which accounted for their arrival at this position before six o'clock , when the captain would once more take charge . Another thing was that from now on they would be on the course of warships passing south from the great base at Mudros , the land-locked harbour of Lemnos . The bosun came up again and reported thirty miles from noon . Well , the log was about ten per cent .