Of the German torpedo flotilla, one large destroyer had been cruising off the Orkneys, and had been seen and chased without success by the British Fleet. Two torpedo boats in the Pentland Firth had already been accounted for. Four large destroyers were lying with steam up at Lerwick, and put to sea with the fast German cruisers. Seven other destroyers, boats of 750 tons, were engaged in patrolling the waters eastwards from the Shetlands to the Norway coast, and were speedily warned. [Illustration] The faster German vessels successfully escaped round the front of the British cordon of cruisers and destroyers. The _Irene_ and _Grief_ were less fortunate. They were sighted soon after 10 p.m., steaming due east, and were easily overtaken and destroyed with little more than a show of resistance. The British vessels which were innermost in the long line were near Lerwick a couple of hours later, and sent in three ocean-going destroyers to watch the port, waiting till daylight before attacking it. During the night the _Orion_ communicated by wireless signals the news that, after a long chase, she had overtaken and sunk the _Bremen_, which had made a gallant fight against overwhelming odds. The _Lincoln_, with her two destroyers, rejoined the fleet, reporting that the German destroyer which they had pursued had got away. A British destroyer was sent south to Fair Island to watch the channel between the Orkneys and Shetlands. Another destroyer was sent off to Loch Eriboll to bring up the rest of the older British destroyers and the colliers to Kirkwall, where the British vessels intended to establish an advanced base. The news of the successes gained was at once communicated to the Admiralty by cipher message. On Friday at daybreak one of the British ocean-going destroyers steamed into Lerwick under the white flag, with a demand from Rear-Admiral Hunter for the immediate surrender of the place. Failing surrender, the communication informed the German commandant that the British ships would shell the town, and would exact exemplary punishment from the German force. The commander of the destroyer was instructed, if the German commandant showed a bold front, to call upon him to clear the town of civilians and permit the British inhabitants to withdraw. The British destroyer which took in this communication was not permitted to approach the mine-field. One of the German torpedo boats came out and received the letter. If the demand for the surrender was acceded to the German commandant was instructed to hoist a white flag within twenty minutes. The officers of the destroyer could see that four large merchant steamers and some warships were inside Bressay Sound. Small guns could be made out on Fort Charlotte and the Wart of Bressay, and two heavy weapons in position near Lerwick behind newly-raised earthworks.