Boat to Beirut. It was now after seven o'clock in the evening. The train from Cairo had arrived at Alexandria at half past two. perhaps Pearson's murderer was already on a boat to Beirut. We must phone Alexandria,said Salahadin to Ahmed. Salahadin picked up the telephone. He asked for the police at the docks in Alexandria. After ten minutes the telephone rang. It was the call to Alexandria. This is Salahadin El Nur speaking. I'm a police inspector and l went to speak to your chief. The chief of the dock police came to the telephone. Salahadin asked some questions and wrote the answer down in his notebook. Here are his notes. Salahadin put down the telephone and looked at his notes for some time. Then he spoke to Ahmed. Pearson's murderer has gone to Beirut,he said. I'm sure of that. Then we can send a message to the boat,said Ahmed. No, we won't do that,said Salahadin.We're not really . certain.