"Wait... what do you mean 'again'? When did you get taken over before?" he asked in surprise. This was the first time he'd heard anything like this from Martha and had no idea what she was talking about.
He paused though, letting her continue. And once she was finished, Jack nodded in understanding. "If you don't feel comfortable staying here, then we'll pack you a bag and you can stay at the Hub with me," he offered.