He looked him over, quickly summing him up. Earth, medieval garb. This was gonna be a tricky one. "It's called the TARDIS," he said softly. "It's... my home. Hard to explain, but... the power that runs her, it's broken. Keeps bringing people here. Working on getting you all home." He flashed a soothing smile. "I'm the Doctor. And this lovely lady is Amaryllis."