On one of the landings was a mirror. The gleam of it struck her eyes, and she paused to scrutinize herself questioningly. She looked deeper and deeper into her own face until the lips of her image parted in a light smile and formed themselves as if to utter a dangerous word. The voice within her was still speaking, but she threw back her shoulders as though to shake off all those invisible thoughts gave her reflection in the glass a bright glance, caught up her skirt, and descended the rest of the stairs with the determined manner of a player who has tossed his last coin down on the table. CHAPTER X ON THE TRAIL The waiter, after serving Edgar with dinner in his room, closed and locked the door behind him. The child started up in a rage. His mother's doings! She must have given orders for him to be locked in like a vicious beast. "What's going on downstairs," he brooded grimly, "while I am locked in up here? What are they talking about, I wonder? Is the mystery taking place, and am I missing it? Oh, this secret that I scent all around me when I am with grown-ups, this thing that they shut me out from at night, and that makes them lower their voices when I come upon them unawares, this great secret that has been near me for days, close at hand, yet still out of reach. I've done everything to try to get at it." Edgar recalled the time when he had pilfered books from his father's library and had read them, and found they contained the mystery, though he could not understand it. There must be some sort of seal, he concluded, either in himself or in the others that had first to be removed before the mystery could be fathomed. He also recalled how he had begged the servant-girl to explain the obscure passages in the books and she had only laughed at him. "Dreadful," he thought, "to be a child, full of curiosity, and yet not to be allowed even to ask for information, always to be ridiculed by the grown-ups, as if one were a stupid good-for-nothing. But never mind, I'm going to find it out, and very soon, I feel sure I will. Already part of it is in my hands, and I mean not to let go till I hold the whole of it." He listened to find out if anyone were coming to the room. Outside, the trees were rustling in a strong breeze, which caught up the silvery mirror of the moonlight and dashed it in shivering bits through the network of the branches.