Just weeks ago, Severus packed a single bag (which, he briefly mused at the time, is much more poetic when one does not possess the ability to perform extension charms) and left everything else behind, including his title as Headmaster. In those weeks, he traded his signature woolen armor for airy linens and scoured the most remote parts of the Dinaric Alps until he found what must be the most illusive leaf in existence and stuffed every empty jar and vial in his satchel with the damn things.