Oh, I think that'll work pretty swell. The wind thing, I mean. Not TOTALLY foolproof, especially if they're content with a dim puppet to control.

But if they seal her up like they say they wanna... Unless they're TOTALLY sure her ashes will be locked away for good, surely a dedicated rogue could just break in! Sacred relics and stuff go missing all the time. Pretty sure some dust isn't immune to being swiped up, either.