Derek's steps faltered at that for a second - because what the hell even - but then he was back to running, passing the barrier with a sigh of relief. He helped Stiles down off his back and steadied him before wrapping an arm around him securely and pulling out his wand. "I'm going to drop you off at a floo station - shit - shoot. Do you have a hookup at your house? You probably don't. Okay. I'll take you to your house then. Is someone home to help you?"