The scene which met his eyes appeared to fill Mr. FitzHoward with an access of amazement to which it was altogether beyond his power to give adequate expression. Mr. Merrett, on the other hand, greeted him with a smile of the heartiest kind.

'What you, Fitz! How goes it, my old pal?'

The fashion of the greeting seemed to render Mr. FitzHoward's amazement greater. On a sudden words came tumbling from his lips.

'So you have come home. Well, I'm a Dutchman if this doesn't beat anything!'

'Who says you're a Dutchman? You give me his name and address and I'll pay him a call. Yes, Fitz, I have come home; and I hope you're as glad to see me as I am to see you.'

'You weren't glad to see me a little while ago.'

'I should have been if I'd had the luck. But we don't always have the luck. I hope, old man, that my presence hasn't caused you any inconvenience?'

Mr. FitzHoward had his hands in his trousers' pockets; his agitation was such that it caused him to agitate those garments in a way which was peculiar.

'I don't know what kind of a fool you take me for. I know I'm a bit of one, but I'm not the altogether you seem to think.'

'What's the matter with you, Fitz? Perhaps it's because I haven't seen you for so long, but your manner appears to me to be a trifle odd.'

'I suppose you're not the Marquis of Twickenham now?'

'Not who? I say, have you--been beginning early?'

'I suppose you never were the Marquis of Twickenham? I suppose I'm not to believe the evidence of my senses? Oh, dear no! If you tell me that you're Jones to-day, and Brown to-morrow, and Robinson the day after, and God knows who next week, I'm never to cast doubt upon your word by suggesting that I ever knew you as anybody else. Is that the kind of man you think I ought to be? Because, if so, although you mayn't like it, I can only tell you that I'm not. I always have said that you were the marvel of the age, but I'm only just beginning to realise what a marvel you really are.'

'Mary, what does the fellow mean?'

She said something which was audible to him alone, When she had finished, Mr. Merrett, lifting the children from off his knees, rose to his feet.

'Mary, when I was here last you spoke of somebody who you seemed to think had been masquerading as me. Fitz, your remarks apparently point in the same direction. What does this person call himself?'

'He calls himself the Marquis of Twickenham--when he's not James Merrett.'

'Is that meant to be funny? Because, if so, take my advice, and don't try to be humorous in a wrong key. Where does he live?'

'His address is Twickenham House, St. James's Square--when it's not Little Olive Street.'

'More humour? Pretty soon I'll give you leave to get in all the laughter you have handy. You come right away along with yours truly, and we'll interview the gentleman who's pretending to be me.'

'He's not pretending to be you; he's pretending that he isn't you.'

'That so? We'll investigate his pretensions anyhow. You just come right along.'

Mr. FitzHoward stared.

'What new caper's this?'

'It's a caper that's going to show you just where the laugh comes in, if you're ready.'

'James, you're not going to leave us?'

'You have tea upon that table at five o'clock; a good tea, mind; and I'll be back for it; back for good. There seems to be some little game going on over in St. James's Square which I'm going to take a hand at. You remember my telling you about a man Jones saw who might have sat for me? Looks as if he had come to life again, and was making trouble. Now trouble of that kind is a thing I don't mean to have come into the life which, from this time forward, you and I are going to live together. So I'm going along with Fitz till tea-time to see that it don't.'

As the two men went side by side along the pavement, Mr. FitzHoward kept glancing at his companion as if he found something about him which was not only strange but altogether beyond his comprehension. Presently he asked a question.

'Well! What's the game now?'

'The game?' Mr. Merrett regarded the other with a glance of innocent inquiry. 'That's what I'm after; that's what I'm going to find out--what the game is.'

They went some little distance before Mr. FitzHoward ventured on another remark.

'You have a face!'

'I hope so. I hope you have one too--even if it's not such an ornament as mine.'

'Ornament!'

Mr. FitzHoward emitted a sigh which might have been intended to mark the interjection. Mr. Merrett hailed a passing cab.

'Drive us to Twickenham House, St. James's Square. Now, Fitz, in you jump.'

That gentleman appeared to hesitate:

'Look here. I don't know what your game is, you're beyond me altogether, but don't you go kicking me out when we get there.'

'Kicking you? Out of what? The cab?'

'No, my Lord Marquis; out of your palatial abode. Because, if you do, this time there'll be trouble.'

'Fitz, would you do me the favour to step into that cab, and don't talk as if you had been let out of a lunatic asylum before your time?'

Thus adjured, Mr. FitzHoward did as he was requested. As the cab bowled along he continued to regard his companion with glances which were brimful of curiosity. But nothing was said. The cab reached Twickenham House. When Mr. Merrett got out he looked the building up and down.

'This the place?'

'Oh, yes, this is the place.'

'Don't look extra lively, does it? As if they kept a funeral on the premises. Nodding plumes out of every window would give a finishing touch. A bit too much in the big bow-wow style to suit me.'

'It does take a big man to properly fill it, as perhaps you found.'

'I found? Fitz, you're a fair treat. You'd better take something for it before it goes too far.'

Mr. Merrett sounded a salute on the knocker and the bell. The door flew open. A powdered footman stood within.

'Marquis of Twickenham at home?'

'His lordship is----' the footman began, then stopped to stare. 'I beg pardon, I----' The man stopped again.

'Well? Get it out! You thought what! For pains in the back try Jujah!'

'I beg your lordship's pardon. I thought your lordship was engaged. I wasn't aware your lordship was out.'