We have all heard quite a lot about the mouse who saved a lion. But it was only one mouse out of a world crammed full of mice. I never heard, in the whole history of mice, since those which Cain and Abel maybe had for pets, of another mouse capable of saving any animal whatever, even itself. Still, there remains that one heroic and intelligent mouse. When Sidney Vandyke had left me to "think things over," I envied it with passion, feeling that I was not even of the mouse tribe. I felt more like a fly, if you can imagine a fly cursed with a human heart, who loves an eagle that has been shot in the wing and caged, and the cage set down on the seashore when the night tide is coming in. What could such a fly do but cling sadly to the cage and buzz and let the great rush of water drown it with the eagle? Even that fly seemed more fortunate than I was, as I pictured it to myself. For it was privileged to rest on the eagle's cage. I could not be near my wounded eagle! Five days after that awful Thursday night a letter from Di told me that her engagement had "changed all her plans." "Sidney" was very impatient, and wanted to be married soon. The moment his work was over at El Paso he would get long leave, and possibly he might make up his mind to resign from the army. That was what she wanted him to do; and when she had him with her, she knew that she could persuade him, for he wasn't really "very keen" on soldiering, and she _must_ live in England, at least half the year round. This part was for the future to decide; but in any case there would be the long leave. It would give time for the wedding and the honeymoon. She had set her heart on being married at St. George's, for it was the "historic" thing to do. And there was the trousseau. Kitty Main _insisted_ on giving it to her for a wedding present; which was rather a weight off one's mind, as America had cost something in spite of everybody's being so hospitable and good. Kitty would go to Paris with her, and help to choose the things, which would be nicer than having just a sum down, and going alone. So they--Di and Kitty and Father--had all decided to cut out the rest of the visits arranged and "make for home." California had been great fun, and Di wished she might stop longer, but one couldn't have one's cake and eat it, too. Being married was her cake. This was her mistake. As I have said before, she had always had both. Major Vandyke's "work in El Paso" was to bear witness against Eagle March in the court-martial which would come on almost at once. And I was to go away without hearing the verdict or seeing Eagle after all was over. * * * * * Di had written to Mrs. Dalziel, too, it appeared, and Milly was only too glad of an excuse to escape from the the place where Captain March's society had been the first and only attraction for her.