[He closes her eyes and concentrates, before a faint mist starts rising up out of nowhere around them, then intensifying.] ...It's good to know Color Magic works. Do you have any other magical abilities I might be able to duplicate?

And that is indeed... limited. But I don't think it should present us with much of a problem, if she stays where she's been. Out in the open, with no barriers except the poltergeists, our physical form won't be that important, except that it's necessary to be a ghost to be able to bind one.