The bridge eventually ended and let out into a small stone room with a treasure chest in the center. This room seems strangely well lit for a dungeon.

https://themes.fourthwall.com/themes/assets/b4272e9f-d7ba-4603-9abb-f68cfd6721fb/assets/image-354df451-9b56-4aef-be70-1b6ea0ac3975-image-33227ca6c61a16e4deda16a1e5da36b1ec6eab519f5bbac153af6014a6ae3e91.png