Ask the Sexy She-wolf What She Knows Knows About the Area

You ask Sakura what she has noticed about this place. She tells you she hasn't noticed much, her kind can't really see in the dark but they do have good noses and she has smelled the presence of a door in the direction opposite of where you arrived from but she couldn't find a door or triggering mechanism to open the passageway. You ask her to lead the way. With your torch lighting the way for both of you, it's easier to see things.

Examining the area around the area that she guided you to, you find an empty sconce on the wall, you set the torch in the sconce and a passageway opens up. A blast of stale air hits you both for a moment before the air calms down again. Taking out another torch, your flint, and your sword, you light your new torch and continue down the tunnel with your new companion. You are stopped at what you assume a door that takes up the whole passageway, it glitters as a piece of solid steel, but you see no adornments or handles that would indicate it is as a door, chances are it's just a solid wall of metal, but dungeons have been known to have some things aren't always what they seem.

Now, you just have to figure out the nature of the challenge, then how to overcome it. It would look pretty lame if you returned before the first day was out.