sentences:  In preparation for the attack, Godsal and Lynes had carefully consulted available charts of Ostend following the previous operation's failure caused by German repositioning of navigation buoys.This careful study was, however, rendered worthless by a sudden fog which obliterated all sight of the shore.Steaming back and forth across the harbour entrance in the fog as the monitors and German shore batteries engaged in a long range artillery duel over the lost cruiser, Godsal looked for the piers marking the entrance to the canal.