There had been some kids before who had gotten the Hanahaki disease. They had kept it quiet, and then sort of...disappeared. If they died, they're funerals were private and hushed. Others got the surgery to remove the flowers-those kids moved to different schools and were never heard from again. So this-Aiden actually catching a glimpse of it-as scary as it was, it felt like a chance-like maybe this time...it could be different...and Elliot? I mean, the thought of Elliot disappearing was-