sentences:  Drummond's launch proceeded to the rendezvous with the destroyer , overweighted and sinking, so severe was the damage she had suffered.Hearing cries, Bourke entered the harbour but could not identify the lost men.Despite heavy machine gun and artillery fire, Bourke returned to the scene of the wreck four times before they discovered two sailors and "Vindictive"s badly wounded navigation officer Sir John Alleyne clinging to an upturned boat.