Luna wasn't finished there, with the rope in place she used a dark hex Nott Snr had practised on her several times in the dungeon. It was similar to a hallucination. Dolohov looked down at his arms in horror, seeing hundreds of tiny bugs burrowing their way into his skin. There was nothing there of course but Luna had told them all about it while they were camping. It was the torture that haunted her the most.