"It just flashed on me at once that a letter of introduction from her would be the very thing to put you at once on a footing of intimacy in Miss Stanhope's house; and that if you were good at imitating handwriting we might manage it by means of a note of invitation which I received from Mrs. Waters some time ago, and which, as good luck would have it, I threw into my table drawer instead of destroying."

"But who knows that it was written by the lady herself?"

"I do, for I heard Bob Waters say so."

"Good! have you the note about you?"

"Yes, here it is." And Arthur drew it from his pocket. "Let's cross over to that lamp-post."

They did so, and Jackson held the note up to the light for a moment, scanning it attentively. "Ah, ha! the very thing! no trouble at all about that," he said, pocketing it with a chuckle of delight, "But," and a slight frown contracted his brows, "what if the old lady should take it into her head to open a correspondence on the subject with her old friend?"

"I've thought of that too, but fortunately for our scheme Mrs. Waters sails for Europe to-morrow; and by the way that should be mentioned in the letter of introduction."

"Yes, so it should. Come to my room at the Merchants' House to-morrow night, and you shall find it ready for your inspection. I suppose the sooner the ball's set in motion the better?" he added as they moved slowly on down the street.

"Yes, for there's no knowing how long it may take you to storm the citadel of her ladyship's heart, or how soon her father may come to the conclusion that he can't do without her, and go and carry her off home. And I tell you, Tom, you'd stand no chance with him, or with her if he were there. He'd see through you in five minutes."

"H'm! What sort is she?"