What did he want from Percy, then? If Percy had been sufficiently not distracted by his family being in danger, he might indeed have seen himself with the Philosopher's Stone; endless wealth and immortality would enable him to have the success he'd always wanted, he'd be able to buy his mum the new marble counter-top she wanted, and shiny things for Ginny because his baby sister should have all the jewelry she wanted, and he could have all the books he wanted and all the time in the world to read them - (he tore his mind away from the daydream with effort) - but how would that actually have been helpful? Obviously Quirrell wanted it too, and seeing the Stone in the mirror hadn't actually provided him with information about how to get it. Dumbledore wasn't stupid; Percy didn't think he'd have much better luck. Well, in stories evil wizards were always delighted to explain their plots; maybe he should just ask. Hesitantly, Percy said aloud, "Er - what were you expecting, exactly?"