She'd stayed exactly with the ancient receipe, and used the same ingredients as always - and yet, this potion was much more powerful than anything she had created in her long life. Therefore she suspected, that not only the process of making that potion, but also its purpose and maybe the desire of the user what to achieve with it was influencing the strenght and effectivity of the brew.

Well then - a love potion this time. May they surface from the sheets before they died from exhaustion or the lack of eat or drink....

On of the reasons she asked for prepayment that was, too.

(Just horsing around with a new elderly character...)