HelepolisH said: I feel sorry for Patchouli already.
I think Patchouli is used to this kind of thing already. There's Flan to consider, especially after she met Marisa, and I don't think Marisa is stingy with her Master Sparks while she's indoors.
Take a look at the books. Every single one of them is intact. Patchouli put a spell of protection from destruction on them all. Too bad she did not put a "Return to caster" spell.