practicality

She let the more painful past lie and concentrated on the disturbing present. "Hm. Some of the materials on protection against malevolent spirits and such suggest binding circles, and wards... I suppose walls wouldn't count as barriers unless the space inside is warded. They probably won't kindly wait outside while we ward against their entry, though. And I can't remember the exact diagram for the warding circle - I'd have to look it up again. But we could try that, if you like..."