'Mr Forey only wishes me to send word; I am not to write,' she went on; 'he wants to know if Mr Byrle will be at the works to-morrow. He will not. Tell Mr Forey he will leave town to-night, and not return until the day after to-morrow. You understand?' She spoke very sharply; so I said: 'Yes, miss,' sharply too, and touched my forehead again. 'You need not wait,' she said; and opening the door, I saw the servant waiting to let me out. I knuckled my forehead again, and putting on rather a clumsier limp than before, got out of the house into the rain and mud. Rain and mud! What did I care for rain and mud now? 'Sergeant Nickham,' says I, when I got fairly out of range of her windows, for I wouldn't trust _her_ with so much as a wink of mine--'Sergeant Nickham,' I said, 'you are the boy! If you can't command your face, there isn't a man in the force as can. If you haven't got a memory for faces, find me the man who has, that's all about it!' Why, of all the extraordinary capers that I ever tumbled to in my life, I never came near such a caper as this. Miss Doyle! _That_ was Miss Doyle, was it? Right enough, no doubt; but if she wasn't also the sham clerk who came and found that I was put on the watch by Mr Byrle, I didn't know a horse from a hedgehog--that's all. The quick look of her eye, her sharp quick voice, the shape of her face, the very way she stood--lor! it was all as clear as daylight. But then I thought, and I kept on thinking till I had got back to the works, what could _she_ have to do with stealing engine-fittings? 'Twasn't likely as she had anything to do with that. It was past all question in my mind as to her being the same party. I knew it for certain; and then came the point--What did she dress herself up for and come a-spying on me and her uncle?--for she was Mr Byrle's niece. I hadn't got to the bottom of this by any means, by the time I got back to the works; however, I gave my message very respectfully to Mr Forey; and offered Bob the gatekeeper his sixpence back, with many thanks. 'No, old chap,' he says; 'keep it at present. If you get on regular, I'll take it off you and a pint into the bargain the day you draw your first week's cash; but a fellow out of work knows the vally of a sixpence.'