APART FROM THE MAIN DOOR, THIS DRAIN IS THE ONLY WAY TO THE OUTSIDE WORLD I'VE FOUND IN THE HS WING.

BUT WE'LL NEVER GET THROUGH THERE, STEVE, IT'S TOO NARROW.

WHAT IF WE GOT STUCK IN THERE, WE'D NEVER BE ABLE TO GET BACK, WE'D DIE SUFFOCATED LIKE RATS IN A TRAP!

THE ONLY WAY TO FIND OUT IS TO TRY, BILLY.

AND WHEN WE GET OUT THERE'S STILL THE WALL… AND THE WATCH TOWERS…

WE'LL IMPROVISE. LISTEN, SON, YOU DON'T HAVE TO FOLLOW ME. I'VE GOT GOOD REASONS TO TAKE ON THESE RISKS. BUT YOU, YOU CAN STILL CHANGE YOUR MIND.

ALL I ASK IS THAT YOU GIVE ME TWO HOURS.

IS… IS IT OK?

IT'S TIGHT BUT IT'S OK.

WAIT FOR ME, I'M COMING!

STEVE! WHERE ARE YOU?

IN FRONT OF YOU, OBVIOUSLY.

AND BE QUIET, THIS ECHOES LIKE A CATHEDRAL DOWN HERE.