309

For three minutes you swim underwater towards the distant shoreline, covering more than half the distance between the submarine and the entrance to the tunnel, but the icy water and the sheer exertion of swimming fully clothed and equipped conspire to sap your strength. You are fast becoming desperate for oxygen, and you now risk potentially deadly muscle cramps if you do not surface in the next few seconds.

If you possess some Sabito, turn to 13.

If you do not possess any Sabito, turn to 274.