A need has arisen for a certain potion made of aconite, with which I believe you are familiar. I am given to believe that the brewing of this particular potion is both time-consuming and difficult, and am therefore prepared to offer you monetary compensation as you deem appropriate, within reason. At the present time I estimate there will be demand for nine batches, of only a single dose each.
As I suspect other matters may keep me from the weekly staff meetings, please leave the potion in my office along with any necessary instructions under the label syzygy. On the off-chance that a student should come across it, I would prefer the contents remain undisclosed; there are those with good reason to fear what such a potion might suggest. I’ll see to it that the potion is delivered to its intended recipient. The password to my office is heliotropy, should I be absent at the time of your visit.
You have my sincere gratitude and appreciation, should you agree to this request; and as you may have guessed from the potion in question, I would not be the only one indebted to you.
Sincerely, Headmaster Schechter
P.S. Tempting as the possession of that password may be, my office does have a recording charm on the lock, so you may wish to refrain from taking advantage of that knowledge without due need.