"Is there something down there, girl?" I asked from the top of the stairs. She glanced up at me, and then quickly turned her attention to the darkness again. My curiosity was piqued even more, so I slung the dish towel over my shoulder, turned on the basement light and tromped down the stairs to see what she was so focused on. As soon as I started down the stairs, she darted off into the nether reaches of the basement.
I followed her into the murk, and she dashed on ahead, tail in the air until the reached the door into our storage/server room. She waited for me outside the door, prancing in circles with her tail in the air and chirping when I got there. Ah. So she wanted into the forbidden room. She knows she's not allowed in there, but she is ever hopeful that I will open the door and then have a lapse of attention. There is lots of interesting stuff to climb over and explore in there.
I can't help but wonder if her caginess was just her way of luring me down there to try and convince me to let her into that room. She has pulled this kind of thing before when she wanted me to come down and clean her litter box. She is a frighteningly smart for a cat.