You go off to the right and down to the basement. When you get down
there, you see, not Barbra, but a devious looking man wearing a nice
suit.
"Where's Barbra?!" you demand.
"Oh, somewhere in this house! Somewhere you'll never find
her!" he says
"Don't play games with me! I asked you a question! Now where is
she?!"
"If you want your friend back, you'll have to find her!"
With that, he passes you and runs up the stairs.
You know that you heard Barbra down here, but it might be a trick! And
that guy definitely knows where Barbra is!
You decide that it most likely coming from the basement.