Private Message to my sweetest Lavender

Thank you again, oh gracious maiden, for trusting me enough to play along with McLaggen's ridiculous tale the other day. I shouldn't like anyone to know precisely what it actually was that kept me outside the castle so late that particular evening; Professor Dolohov has impressed upon me the wisdom that keeping a secret closely held is the best way to prolong its usefulness for leverage, I believe he called it. Hence my caution to you that however tempting it may be to speak of what you saw captured in those omnioculars, you must resist with all your strength -- which I know you have been doing, and shall continue to do, my dearest Gryffindor!

Only if you could manage not to blush when you look at Finnegan or Jugson, that would help. They still have no idea, and I wish to keep it so.

Perhaps I ought to write you a love-poem to carry around, so that you could pass off any blushes as due to it?

In any case, as I have sent the device and all the supporting documentation and analysis off to my sponsor in plenty of time, there is naught else for me to do regarding this challenge save basking in the glow of success. And, of course, spending time with my favorite Gryffindor. Revising together again soon, yes?