Extend the Story - Add a Room

The doors were solid, thick stone, and there was nothing for Jezirea to use as leverage to open them. No handles to pull or push, so if she could use the sword to pry it open even just a little, she would probably be able to use brute strength to open it enough for her so squeeze her slim body through.

She dug the sword as far as she could in to the crevice between the stone doors, and then pushed with all her strength.
The doors groaned, and dust shifted from their surface, but they didn't otherwise move at first.
Suddenly, the door moved, just a fraction of an inch, and Jezirea gave an internal shout for joy. That is, until the sword snapped clean in half sending Jezirea sprawling to the ground.
She cursed loudly, and it echoed through out the sealed chamber.

After a moment of lying there, getting in to a very foul mood, she stood and dusted herself off.

Jezirea picked up the broken sword hilt, not even noticing that the strange warm feeling had vanished from it. She tossed it over her shoulder to the dirt. She couldn't even sell it now that it was broken.
Then, on a second whim, she picked the hilt up again. She'd have to use it to dig now.

Better get digging.