Appears to be the correct path! Though some ominous grumblings and shakings of the ancient stone might convince the faint of heart to turn back. At the end of the hall is a wide room, apparently empty but as soon as you enter you will fall straight up to the ceiling where treasure lies in the form of millions of gold and jeweled keys of roughly the same size.

One of these millions of keys will fit in the only other door which is at the bottom of the room. Good luck getting there and finding which one. Also be careful. Some of these keys are mildly poisonous to the touch. Nothing there that will kill you, but will leave you quite trippy for a few hours.

There seems to be a riddle to help along the way.

Some keys for boxes
Some keys for starts
But the one that opens this old door
Comes from the depth of your

Well the last word is a little smudged. It could read "heart" but it could very well read "fart". Aren't these old ruins the worst?