Never had the advantages of education appealed to the girls more strongly. They began to think quite seriously of the necessity for studying foreign languages. "Why didn't I have a Fraeulein in my babyhood instead of an ordinary English nursery governess?" lamented Deirdre. "We may be able to do something with a dictionary," said Dulcie more hopefully. The idea was consoling enough to prompt them to put on their shoes and stockings, pocket the document, and climb the cliff. After all, if they could make little out of it themselves, they had at least prevented the message from falling into the hands of the person for whom it was destined, and so had frustrated Gerda's intention. That was sufficient reward for their trouble, even without the chance of learning its contents. "We can keep asking separate words or even sentences until we can piece it all together," said Dulcie sagely. "Right you are! and now we'd best rush back as fast as we can." Time waits for nobody, and during their excursion to the beach it had seemed to roll on above the speed limit. Unless they meant to be late for the walk, they must hurry. They were obliged to skirt the cliffs, for they did not dare to show themselves on the open tract of the warren. It was not particularly easy to make haste along a narrow path beset with briers and riddled with rabbit holes. Deirdre went first, because she always naturally took the lead, and Dulcie, whose physical endurance was less, panted after her a bad second. Suddenly Deirdre stopped, and, shading her eyes with her hand, looked intently over the sea at a small object in the far distance. "What's that?" she asked sharply. For a moment or two it had the semblance of a huge bird, then a strange whirring noise was heard, and as it drew rapidly nearer and nearer they could see it was an aeroplane flying at no great height over the water. Apparently it was aiming for the exact spot where they were standing, and, quite scared, the girls crouched down beside a gorse bush. With a loud whirr it passed over their heads, and, steering as easily as a hawk, alighted gently on the moorland only about a hundred yards farther on.