Where's Bella? Where's Brooklyn?

We live in an older house, so the closets do not have doors on them. I have improvised and hung curtains to (most) of the closets in the house to hide the clutter contents of the closets. Bella and Brooklyn love to hide behind the curtain and we, of course, act like we have no idea where they are asking each other "where's Bella", "where's Brooklyn" and they come running from behind the curtain!