Harry bent over the crystal ball and stared, stared as hard as he could, willing it to show him something other than swirling white fog, but nothing happened.
He fumbled behind him for the latch on the door.
¡°How do you expect to find a rat in the dark?¡± snapped Hermione. ¡°There's nothing we can do! We came back to help Sirius; we're not supposed to be doing anything else!¡±