Rave stood up and dug around in her pocket for a moment before pulling out what appeared to be an emerald ring. She and Lua had found a chest buried in the greenhouse last term that was filled with various artifacts. Professor Virosha had let them keep one thing each and this ring is what Rave had chosen. It keep the person wearing it at a comfortable tempature no matter how cold or hot it was, and gave light. The professor had told her it was an Auror's ring. She slipped it on and followed the Ravenclaw girl she knew as Julia into the cave.