Unfortunately, Zach didn't hear much beyond her request to buzz her in; the tone in her voice was enough to have his feet tearing down corridor and stairs to the front door. He practically pulled it from the hinges in his haste to get to her.
His arms were tight around her for a long moment before he pulled away to look into her face, clearly checking for injuries. "Come on, let's get you upstairs and then you can tell me what happened."