Five minutes. Five minutes or not even that, that's how long Jack was dead in the Doctor's arms, his body limp and limbs loose.

The blood from his wounds was still wet, but the damage behind it had healed, and his body as ever reset itself as though nothing had ever happened. Like a mistake rubbed off a blackboard. All gone.

Five minutes or less and he opened his eyes and took a deep gasp of breath. His muscles awoke and tightened, and his grip firm on the Doctor's arm. His eyes searched in confusion before he, seconds later, acclimatised to his situation.

"Doctor!" he breathed out deeply, deep breaths to fill his fixed lungs. "Doctor what was that thing?"