But so it has to be.

My dear, even so I were fain to stand here long before thee, even if we spake no more word to each other; but abiding here is perilous; for there is ever an evil spy upon my doings, who has now as I deem followed the King's Son to the house, but who will return when he has tracked him home thither: so we must sunder.
But belike there is yet time for a word or two: first, the rede which I had thought on for our deliverance is now afoot, though I durst not tell thee thereof, nor have time thereto.

But this much shall I tell thee, that whereas great is the craft of my Mistress in wizardry, yet I also have some little craft therein, and this, which she hath not, to change the aspect of folk so utterly that they seem other than they verily are; yea, so that one may have the aspect of another.

Now the next thing is this: whatsoever my Mistress may bid thee, do her will therein with no more nay-saying than thou deemest may please her.

And the next thing: wheresoever thou mayst meet me, speak not to me, make no sign to me, even when I seem to be all alone, till I stoop down and touch the ring on my ankle with my right hand; but if I do so, then stay thee, without fail, till I speak.