It was during this time that I perceived most clearly the effect of manner, and was led to lament most deeply the plainness of my own. Mr. Henry had the essence of a gentleman; when he was moved, when there was any call of circumstance, he could play his part with dignity and spirit; but in the day's commerce (it is idle to deny it) he fell short of the ornamental. The Master (on the other hand) had never a movement but it commended him. So it befell that when the one appeared gracious and the other ungracious, every trick of their bodies seemed to call out confirmation. Not that alone: but the more deeply Mr. Henry floundered in his brother's toils, the more clownish he grew; and the more the Master enjoyed his spiteful entertainment, the more engagingly, the more smilingly, he went! So that the plot, by its own scope and progress, furthered and confirmed itself.

It was one of the man's arts to use the peril in which (as I say) he was supposed to stand. He spoke of it to those who loved him with a gentle pleasantry, which made it the more touching. To Mr. Henry he used it as a cruel weapon of offence. I remember his laying his finger on the clean lozenge of the painted window one day when we three were alone together in the hall. "Here went your lucky guinea, Jacob," said he. And when Mr. Henry only looked upon him darkly, "O!" he added, "you need not look such impotent malice, my good fly. You can be rid of your spider when you please. How long, O Lord? When are you to be wrought to the point of a denunciation, scrupulous brother? It is one of my interests in this dreary hole. I ever loved experiment." Still Mr. Henry only stared upon him with a glooming brow, and a changed colour; and at last the Master broke out in a laugh and clapped him on the shoulder, calling him a sulky dog. At this my patron leaped back with a gesture I thought very dangerous; and I must suppose the Master thought so too, for he looked the least in the world discountenanced, and I do not remember him again to have laid hands on Mr. Henry.

The Works of Robert Louis Stevenson - Swanston Edition, Vol. XII (of 25) — Part 61

But though he had his peril always on his lips in the one way or the other, I thought his conduct strangely incautious, and began to fancy the Government--who had set a price upon his head--was gone sound asleep. I will not deny I was tempted with the wish to denounce him; but two thoughts withheld me: one, that if he were thus to end his life upon an honourable scaffold, the man would be canonised for good in the minds of his father and my patron's wife; the other, that if I was anyway mingled in the matter, Mr. Henry himself would scarce escape some glancings of suspicion. And in the meanwhile our enemy went in and out more than I could have thought possible, the fact that he was home again was buzzed about all the country-side, and yet he was never stirred. Of all those so-many and so-different persons who were acquainted with his presence, none had the least greed--as I used to say in my annoyance--or the least loyalty; and the man rode here and there--fully more welcome, considering the lees of old unpopularity, than Mr. Henry--and, considering the free-traders, far safer than myself.

The Works of Robert Louis Stevenson - Swanston Edition, Vol. XII (of 25) — Part 61