Luna was hardly normal when it came to things that other people didn´t like or didn´t think was safe. She had always been able to see the thestrals, from the very first day of Hogwarts, and even frequently befriended the ghosts of Hogwarts, too. That was just Luna, and she didn´t think anything of going to the Forbidden Forest at night to find the unicorns. They were her friends too, in Luna´s eyes.
Luna nodded politely in thanks to Kreacher handing them the food, a fond smile on her featuers. "Yes, of course. I imagine the unicorns will be happy to get these, too. Oh, I nearly forgot!" She leaned over and placed one of her necklaces on Kreacher, smiling all the while as she did so. "There, that should help you!" She turned back to Hermione, barely paying attention to Kreacher´s reaction to the necklace, and smiling contentedly.