"Oh, he is a guest here?" "Yes, he is," she said. "You are wondering how I know. Nothing simpler. The same costumier who made my domino, supplied his Chinese dress. I noticed it at his shop. It struck me as rather nice, and I asked whom it was for. The costumier said, for an Englishman at the Hôtel de Bade. Then he looked in his book, and told me the Englishman's name. It was Victor Field. So, when I saw the same Chinese dress here to-night, I knew it covered the person of one of my favorite authors. But I own, like you, I was a good deal surprised. What on earth should a little London literary man be doing at the Countess Wohenhoffen's? And then I remembered the astonishing resemblance between Victor Field and Louis Leczinski; and I remembered that to Louis Leczinski the Countess Wohenhoffen had been a second mother; and I reflected that though he chose to be as one dead and buried for the rest of the world, Louis Leczinski might very probably keep up private relations with the Countess. He might very probably come to her ball, incognito, and safely masked. I observed also that the Countess's rooms were decorated throughout with white lilac . But the white lilac is the emblematic flower of the Leczinskis; green and white are their family colours. Wasn't the choice of white lilac on this occasion perhaps designed as a secret compliment to the Prince? I was taught in the schoolroom that two and two make four." "Oh, one can see that you've enjoyed a liberal education," he apprised her. "But where were you taught to jump to conclusions? You do it with a grace, an assurance. I too have heard that two and two make four; but first you must catch your two and two. Really, as if there couldn't be more than one Chinese costume knocking about Vienna, during carnival week! Dear, good, sweet lady, it's of all disguises the disguise they're driving hardest, this particular season.