Luna had a spring in her step as she followed the crowd into an out-of-the-way room. Hermione had never bothered to get back to her on the subject of restarting the DA, but it appeared she and Harry must have worked out the details and secured Dumbledore's assistance. She couldn't wait to get started.
When she entered, all her peers looked distressed. As they seemed to be focused more on Dumbledore than on her, Luna didn't dwell on it. She took a seat on the flagstone, folding her legs under her.