The task undertaken by blimps and seaplanes in their daily warfare against the pirates was far from selfish. The Mistress of the Seas and her Allies kept guard over the welfare of neutral nations as well as of their own. While journeying homeward the Danish steamer _Odense_ was met by a German submersible. It signalled her to stop. The order was complied with without hesitation, but instead of making an examination of the ship’s papers the U-boat opened fire, killing two of the crew. The enemy commander then ordered the survivors into the boat. This was really inviting them to commit suicide, for the weather was such as to render the likelihood of the men’s being saved extremely remote. While this little tragedy of the sea was being acted, a British submarine put in an appearance, apparently from nowhere. She had been summoned by aircraft. The U-boat did not stay to fire further shells into the steamer. Not long afterward a British patrol ship on its ceaseless vigil came across the Danes in their cockleshell, took them on board, gave them warm food and dry clothes, and amply demonstrated the fact that the British Navy was neither spiteful nor cruel because it did not own the globe. A British coastal airship was scouting for a convoy bound westward. The voyage had been uneventful, when a look-out spied the track of a torpedo aimed with deadly certainty at one of the steamers. With marvellous agility the course of the airship was altered and traversed the trail still outlined on the water. It is said that she travelled at a rate approaching ninety miles an hour. There was the gaunt form of the submarine right enough, though submerged. Well-placed bombs did the rest.