"Nothing harmful, for a wonder, just... strange," he assured Sun. "There is a tale- perhaps you know of a similar one- of an enchanted spring, where if one drinks its water, it restores their youth. This rain had rather the opposite effect on certain individuals; instead of getting younger, they aged a number of moons- months- in the space of a single night. And moreover, they recalled that time as if they'd lived it in their own worlds, despite never leaving this Isle."

"Given its obviously magical nature, tis likely for the best that no one was able to keep any, when we've no idea what the passage of time might do to it in its pure form. Would it degrade and lose its effectiveness? Would it grow more potent, like wine left to age? Or would it simply become ordinary water the moment it ceased to fall from the sky as rain? We've no way to know. And frankly, this is one instance where I'd rather not test the waters, to turn a phrase."