Christian's Castle by michaelrayholt PG

You trudge down the tunnelway before you for what seems like an eternity, navigating its twists and turns, but never is there more than the one path. Finally, you arrive at a well-lit, circular alcove approximately six feet in diameter.

Hardly sensing the need for good lighting here as it only serves to further illuminate the rancid green and black muck that surrounds you and the walls and everything, you cringe in disgust. You notice that the walls almost collapse upon each other as they arch toward their zenith, a good ten feet overhead.

The only exits are back the way you came and through a narrow slit in front of you, just barely wide enough for you to turn sideways and slip through, and (oddly) exactly as tall as you. It makes the parts of you that are claustrophobic bubble to the surface and scream at the mere thought of going through, but it might be a way out. Upon closer inspection, you find the words scribbled on the footlong stone directly above the slim passageway:

"Because strait is the gate, and narrow is the way, which leadeth unto life, and few there be that find it."

What will you do?