about four in the afternoon
But the wait lasted longer than Ken and Roy expected . All that day G2 cruised slowly back and forth between the big island of Marmora , where the marble quarries are , and the high coast of the European mainland , yet nothing rewarded her vigilant watch . There was nothing to do but sit about and yarn , and more than once Roy told Ken that he would n't be a submarine sailor for any amount of ` hard lying ' money . It was about four in the afternoon , and Ken had been taking a quiet nap , for he had a lot of arrears of sleep to make up , when he was roused by a sudden sharp order from Lieutenant Strang . In an instant the drowsy interior of G2 wakened into sudden life , and Ken , springing to his feet , moved forward to where Williams was standing near the forward periscope . ` What 's up ? ' he asked in a quick undertone .