“Again I swear!” came the Professor’s resonant voice. Mrs. Harker smiled, positively smiled, as with a sigh of relief she leaned back and said:⁠—

“And now one word of warning, a warning which you must never forget: this time, if it ever come, may come quickly and unexpectedly, and in such case you must lose no time in using your opportunity. At such a time I myself might be⁠—nay! if the time ever comes, shall be ⁠—leagued with your enemy against you.”

“One more request;” she became very solemn as she said this, “it is not vital and necessary like the other, but I want you to do one thing for me, if you will.” We all acquiesced, but no one spoke; there was no need to speak:⁠—