The search, though long continued, proved unsuccessful. There was no trace of Alessa or Donna. Brian stood on the shore with his hands behind his back; his face became gloomy and his lips compressed in front of the fruitless search. The police chief went to him discreetly and said, hesitatingly, "Mr. Sterling, we’ve searched all the cargo ships returned, but nobody has been found... " "Any freighter hasn't sailed back yet? Keep sending signals to those freighters that haven’t returned! If you can’t contact some of them, drive yachts to call them back!" He shouted in a voice husky with emotion, and his bloodshot eyes showed his need for sleep. It was normal that communication signals at sea could not be picked up by all cargo ships, so there must be some cargo ships had not sailed back.