“I met our friend Vitriol Bob last night at a public-house,” observed Jack, who seemed quite proud of having the hideous old woman clinging to him. “He looked remarkably savage when he saw me in my bran new toggery—for he thought to himself that the money which purchased it ought to have belonged to him. I hadn’t seen him since the night in Stamford Street; and, as he had the impudence to stare at me in a threatening manner, I went up to him and whispered in his ear, ‘What about old Torrens, Bob?’ He turned quite livid with rage, and ground his teeth together; then, after a few moments’ consideration, he said—also in a whisper—‘If it wasn’t that you knew that secret, I’d serve you out nicely, old fellow: but I’ll be even with you yet, I dare say.’—‘Whenever you like, Bob,’ said I; and then we sate down in different parts of the room and stared at each other all the time we were smoking our pipes. But not another word passed between us; and the other people who were present, knowing that we were excellent pals until lately, wondered what the devil was the matter.”

“And did he bury the dead body, do you know?” inquired Mrs. Mortimer.

“I didn’t put the question to him,” answered Jack Rily. “Nothing more passed between us than what I have just told you: but I have no doubt that he laid old Torrens two or three feet under the kitchen floor in the Haunted House. And now, how do you suppose that I and Vitriol Bob stand with regard to each other?”

“As enemies, I should suppose,” replied Mrs. Mortimer, wondering by what means she could possibly shake off her disagreeable companion.

“As mortal—implacable—unrelenting enemies,” continued the man, lowering his voice: for his loud talking had already attracted the notice of the passers-by in the Strand, and he had just caught sight of a policeman who appeared to be eyeing him rather suspiciously. “Yes—as bitter enemies,” he repeated. “Not that I have any resentment now against Bob: because my revenge is gratified, and I am more than even with him. But as he will take the first opportunity to thrust a knife into my ribs, or dash his vitriol bottle in my face, whenever he catches me in a lonely place,—why, I must be prepared to struggle with him to the very death. So, my old tiger-cat,” added the Doctor, with amazing cheerfulness, considering the gravity of the topic, “whenever he and I do so meet, only one of us will walk away alive. That’s as certain as that you’re leaning on my arm, and that I’m proud of your company.”

“Is Vitriol Bob, as you call him, such a desperate fellow?” inquired Mrs. Mortimer, wishing the Doctor at the hottest place she could think of.

“Why, I’ve told you all about him before,” exclaimed Jack. “And now let me give you a little piece of advice about yourself, old gal——”

“About me!” repeated Mrs. Mortimer, with a shudder occasioned by a presentiment of what she was going to hear.

“Yes—about you, my tiger-cat,” repeated the Doctor. “Remember that Vitriol Bob never forgets or forgives—and he owes you one. That’s all! But, when I think of it, I shall constitute myself your lawful protector—because I never did meet any woman so precious ugly as you are; and ugliness, when joined to ferocity, is beauty in my eyes—as I have before told you.”

“Well, well—we will discuss all these points another time,” said Mrs. Mortimer. “I must leave you here,” she added, stopping suddenly short at the corner of Wellington Street, leading to Waterloo Bridge.