Yeah. It was Dumbledore's idea. He told me that Slytherin had left a chamber in the castle and something in it to protect everyone, and he asked me to help him find it. And I can talk to snakes, so I made friends with the basilisk. It was keeping its eyes closed unless there were zombies. And then we had petrified ones, so people like Madam Pomfrey were trying to study them. I don't know if they'd found anything out yet though.