eleven o'clock
The automatic developing film would record any trace of fluorescence , and a red light would signal this result to the pilot 's cabin . Minutes went by as the _ Sea Hound _ nosed slowly along through the gray-green gloom , its sister craft flanking it a hundred yards on either side . They were moving only a fathom or so above the bottom . `` A blip at eleven o'clock ! '' the sonarman called out suddenly . Tom 's pulse quickened . `` Moving straight toward us , '' the sonarman added .