"We could have set the Portkey to take you directly into the school; but to get the full experience, we’ve portkeyed you to this place off-campus. You’ve arrived behind a petrol station that is no longer in business. I’ve cast a Notice-Me-Not Charm here, so that nonmagicals don’t notice the odd manner of your arrival, and they won’t notice us till we’ve walked twenty yards away from here. From here, the walk to MMA is a short one, but memorable."