Misty
If she's there at the time, can you try to send Lillie at least to the school? I don't know if she'll actually go but she's only fourteen. Might help if you tell her Lulu needs to get there.
Kinda thinking of sending Redwing down to you too. He's good at getting bad guys tangled up in tight spaces like that and he's got his sonic cannon. I don't know if that would mess you up though.