CYOA - Use a regular key/Have Nyte Pick the Lock

Use a Regular Key:

You decide to use the regular key in order to open the door, sliding the metal into the keyhole.  Both you and Nyte flinch slightly as you heard a click, then turned it to hear it open.  Despite not having seen any magic or anything on the door you were still weary of any traps, but such fear proved to be unfounded as the door opened and allowed you access inside.

Have Nyte Pick the Lock:

"Leave it to me!" Nyte said eagerly as he pulled out his lockpick set and knelt down to the lock.  There was a few seconds of him working on it before the two of you heard a loud click.  In the next instant the Tabaxi got up and opened the door, hearing the old metal hinges squeaking loudly.

With the door opened you and Nyte carefully poke your heads in to see what was on the other side, only to find that there was nothing there but an empty hallway with a few cobwebs that hung from the ceiling.  After the door that you had to go through and the imps that you just fought it appeared that it was a moment of respite in your mission to venture deeper into the ruins.  You give the catfolk a nod and the two of you venture in, taking only a few steps before the door closed behind you with a loud bang.

With Nyte being a Tabaxi he has little trouble fishing out a torch and lighting it so that you are able to see.  The two of you make your way down through the hallways of the ruins and deeper down into the depths.  For a while you aren't sure whether or not you are going in circles as you find any rooms are all the same.  You can also tell that the corruption was starting to get more ingrained into the architecture as you see black streaks in the stone.

Eventually however you find a place that looks like it had been recently set up, an old camp site complete with burned out fire pit in the middle of it.  You and Nyte look through the area and find that whomever was there had either abandoned the site or were taken against their will.  When you ask the Tabaxi if this was his campsite he shook his head, stating that they had come in through the different side of the ruins.  From the look of the bedroll and tent this place hadn't been used in a while, but definitely was newer then most of the place.

"Looks like a place we can take a break," Nyte said as he crawled into the tent to search through the bedroll.  "Hey, this thing has a cushion in it... what do you think?  Perhaps we could share this and have a... nap?"

It was clear that the catfolk had other things in mind, and the bedroll that the Tabaxi was talking about did look rather tempting...