“Of course it might, and probably was. I never thought of that. Is there any possible way of guessing approximately how long a scent will remain? You see, this is a natural scent, and may derive from a place where it has been effective for thousands of years. Then, does a scent of any kind carry with it any form or quality of another kind, either good or evil? I ask you because one ancient name of the house lived in by the lady who was attacked by the mongoose was ‘The Lair of the White Worm.’ If any of these things be so, our difficulties have multiplied indefinitely. They may even change in kind. We may get into moral entanglements; before we know it, we may be in the midst of a struggle between good and evil.”

Sir Nathaniel smiled gravely.

“With regard to the first question—so far as I know, there are no fixed periods for which a scent may be active—I think we may take it that that period does not run into thousands of years. As to whether any moral change accompanies a physical one, I can only say that I have met no proof of the fact. At the same same time, we must remember that ‘good’ and ‘evil’ are terms so wide as to take in the whole scheme of creation, and all that is implied by them and by their mutual action and reaction. Generally, I would say that in the scheme of a First Cause anything is possible. So long as the inherent forces or tendencies of any one thing are veiled from us we must expect mystery.”

“There is one other question on which I should like to ask your opinion. Suppose that there are any permanent forces appertaining to the past, what we may call ‘survivals,’ do these belong to good as well as to evil? For instance, if the scent of the primaeval monster can so remain in proportion to the original strength, can the same be true of things of good import?”

Sir Nathaniel thought for a while before he answered.

“We must be careful not to confuse the physical and the moral. I can see that already you have switched on the moral entirely, so perhaps we had better follow it up first. On the side of the moral, we have certain justification for belief in the utterances of revealed religion. For instance, ‘the effectual fervent prayer of a righteous man availeth much’ is altogether for good. We have nothing of a similar kind on the side of evil. But if we accept this dictum we need have no more fear of ‘mysteries’: these become thenceforth merely obstacles.”

Adam suddenly changed to another phase of the subject.

“And now, sir, may I turn for a few minutes to purely practical things, or rather to matters of historical fact?”

Sir Nathaniel bowed acquiescence.

“We have already spoken of the history, so far as it is known, of some of the places round us—‘Castra Regis,’ ‘Diana’s Grove,’ and ‘The Lair of the White Worm.’ I would like to ask if there is anything not necessarily of evil import about any of the places?”

“What is the matter?” said the man who had caused Miss Pross to scream; speaking in a vexed, abrupt voice (though in a low tone), and in English.

“Oh, Solomon, dear Solomon!” cried Miss Pross, clapping her hands again. “After not setting eyes upon you or hearing of you for so long a time, do I find you here!”

“Don’t call me Solomon. Do you want to be the death of me?” asked the man, in a furtive, frightened way.

“Brother, brother!” cried Miss Pross, bursting into tears. “Have I ever been so hard with you that you ask me such a cruel question?”

“Then hold your meddlesome tongue,” said Solomon, “and come out, if you want to speak to me. Pay for your wine, and come out. Who’s this man?”

Miss Pross, shaking her loving and dejected head at her by no means affectionate brother, said through her tears, “Mr. Cruncher.”

“Let him come out too,” said Solomon. “Does he think me a ghost?”

Apparently, Mr. Cruncher did, to judge from his looks. He said not a word, however, and Miss Pross, exploring the depths of her reticule through her tears with great difficulty paid for her wine. As she did so, Solomon turned to the followers of the Good Republican Brutus of Antiquity, and offered a few words of explanation in the French language, which caused them all to relapse into their former places and pursuits.

“Now,” said Solomon, stopping at the dark street corner, “what do you want?”

“How dreadfully unkind in a brother nothing has ever turned my love away from!” cried Miss Pross, “to give me such a greeting, and show me no affection.”

“There. Confound it! There,” said Solomon, making a dab at Miss Pross’s lips with his own. “Now are you content?”

Miss Pross only shook her head and wept in silence.

“If you expect me to be surprised,” said her brother Solomon, “I am not surprised; I knew you were here; I know of most people who are here. If you really don’t want to endanger my existence—which I half believe you do—go your ways as soon as possible, and let me go mine. I am busy. I am an official.”

“My English brother Solomon,” mourned Miss Pross, casting up her tear–fraught eyes, “that had the makings in him of one of the best and greatest of men in his native country, an official among foreigners, and such foreigners! I would almost sooner have seen the dear boy lying in his—”

“I said so!” cried her brother, interrupting. “I knew it. You want to be the death of me. I shall be rendered Suspected, by my own sister. Just as I am getting on!”

“The gracious and merciful Heavens forbid!” cried Miss Pross. “Far rather would I never see you again, dear Solomon, though I have ever loved you truly, and ever shall. Say but one affectionate word to me, and tell me there is nothing angry or estranged between us, and I will detain you no longer.”