_28 September._--It is wonderful what a good night's sleep will do for one. Yesterday I was almost willing to accept Van Helsing's monstrous ideas; but now they seem to start out lurid before me as outrages on common sense. I have no doubt that he believes it all. I wonder if his mind can have become in any way unhinged. Surely there must be _some_ rational explanation of all these mysterious things. Is it possible that the Professor can have done it himself? He is so abnormally clever that if he went off his head he would carry out his intent with regard to some fixed idea in a wonderful way. I am loath to think it, and indeed it would be almost as great a marvel as the other to find that Van Helsing was mad; but anyhow I shall watch him carefully. I may get some light on the mystery.

* * * * *

_29 September, morning._.... Last night, at a little before ten o'clock, Arthur and Quincey came into Van Helsing's room; he told us all that he wanted us to do, but especially addressing himself to Arthur, as if all our wills were centred in his. He began by saying that he hoped we would all come with him too, "for," he said, "there is a grave duty to be done there. You were doubtless surprised at my letter?" This query was directly addressed to Lord Godalming.

"I was. It rather upset me for a bit. There has been so much trouble around my house of late that I could do without any more. I have been curious, too, as to what you mean. Quincey and I talked it over; but the more we talked, the more puzzled we got, till now I can say for myself that I'm about up a tree as to any meaning about anything."

"Me too," said Quincey Morris laconically.

"Oh," said the Professor, "then you are nearer the beginning, both of you, than friend John here, who has to go a long way back before he can even get so far as to begin."

It was evident that he recognised my return to my old doubting frame of mind without my saying a word. Then, turning to the other two, he said with intense gravity:--

"I want your permission to do what I think good this night. It is, I know, much to ask; and when you know what it is I propose to do you will know, and only then, how much. Therefore may I ask that you promise me in the dark, so that afterwards, though you may be angry with me for a time--I must not disguise from myself the possibility that such may be--you shall not blame yourselves for anything."

"That's frank anyhow," broke in Quincey. "I'll answer for the Professor. I don't quite see his drift, but I swear he's honest; and that's good enough for me."

"I thank you, sir," said Van Helsing proudly. "I have done myself the honour of counting you one trusting friend, and such endorsement is dear to me." He held out a hand, which Quincey took.

Then Arthur spoke out:--

"Dr. Van Helsing, I don't quite like to 'buy a pig in a poke,' as they say in Scotland, and if it be anything in which my honour as a gentleman or my faith as a Christian is concerned, I cannot make such a promise. If you can assure me that what you intend does not violate either of these two, then I give my consent at once; though for the life of me, I cannot understand what you are driving at."