appropriate signal he submerged and set course for Manila at full cruising speed. On the fourth day, somewhere north of Iwojima, he came to periscope depth for an inspection of the empty sea, as was his routine in each watch of the daylight hours, and found the visibility to be extremely low, apparently with some sort of dust; at the same time the detector on his periscope head indicated a high level of radioactivity. He attempted to report this to Pearl Harbor in a signal, but got no reply; he carried on, the radioactivity increasing as he neared the Philippines. Next night he made contact with Dutch Harbor and passed a signal in code to his admiral, but was told that all communications were now irregular, and he got no reply. On the next night he failed to raise Dutch Harbor. He carried on upon his mission, setting course around the north of Luzon. In the Bahntang Channel he found much dust and the radioactivity far above the lethal level, the wind being westerly, Force Four to Five. On the seventh day of the war he was in Manila Bay looking at the city through his periscope, still without orders. The atmospheric radioactivity was rather less here, though still above the danger level; he did not care to surface or go up on to the bridge. Visibility was moderate; through the periscope he saw a pall of smoke drifting up above the city and formed the opinion that at least one nuclear explosion had taken place there within the last few days. He saw no activity on shore from five miles out in the bay. Proceeding to close the land, he grounded his ship unexpectedly at periscope depth, being then in the main channel wherethe chart showed twelve fathoms; this reinforced his previous opinion. He blew his tanks and got off without difficulty, turned round, and went out to the open sea again.
That night he failed again to raise any American station, or any ship that could relay his signals. Blowing his tanks had used up much of his compressed air, and he did not care to take in the contaminated air in that vicinity. He had been submerged by that time for eight days; his crew were still fairly fit, though various neuroses were beginning to appear, born of anxiety about conditions in their homes. He established radio contact with an Australian station at Port Moresby in New Guinea; conditions there appeared to be normal, but they could not relay any of his signals.
It seemed to him that the best thing he could do would be to go south. He went back round the north of Luzon and set course for Yap Island, a cable station under the control of the United States. He got there three days later. Here the radioactive level was so low as to be practically normal; he surfaced in a moderate sea, blew out the ship with clean air, charged his tanks, and let the crew up on the bridge in batches. On entering the roads he was relieved to find an American cruiser there. She directed him to an anchorage and sent a boat; he moored ship, let the whole crew up on deck, and went off in the boat to put himself under the command of the captain of the cruiser, a Captain Shaw. Here he learned for the first time of the Russo-Chinese war that had flared up out of the Russo-N.A.T.O. war, that had in turn been born of the Israeli-Arab war, initiated by Albania. He learned of the use of cobalt bombs by both the Russians and the Chinese; that news came deviously from Australia, relayed from Kenya. The cruiser was waiting at Yap to rendezvouswith a Fleet tanker; she had been there for a week and in the last five days she had been out of communication with the United States. The captain had sufficient bunker fuel to get his ship to Brisbane at her most economical speed, but no further.
Commander Towers stayed at Yap for six days while the news, such as it was, grew steadily worse. They did not succeed in making contact with any station in the United States or Europe, but for the first two days or so they were able to pick up news broadcasts from Mexico City, and that