 The action continued across the Narrow Seas towards Dunkirk , Nieuwpoort , Gravelines and Sluis . The Dutch Admiral Jan Cant soon cut off the Spanish and the English waited outside of the Flemish road stead in case any tried to escape elsewhere . The States ' ship Mackerel ( <unk> ) , came in sight and attacked the already damaged San Felipe , pouring in a broadside . Drawing off from this assailant , the galley found herself close to Vice @-@ Admiral Cant 's Half Moon ( Halve <unk> ) . The galley tried to evade discovery by remaining immobile in the darkness but this had disastrous results . The Halve <unk> bore straight down upon the galley and struck at her amidships carrying off her mainmast and her poop . Whilst extricating himself with difficulty from the wreck Half Moon sent a tremendous volley of cannon fire straight into the waist . Another State 's <unk> bore down to complete the work ; San Felipe sunk quickly carrying with her all the galley slaves , sailors , and soldiers . 
