"Synesthesia," he repeats. "It's a phenomenon in which a person perceives a stimulus with more than one sense, or sometimes the 'wrong' sense. That might be why I feel like I can taste the sky, or at least that color blue, and why you keep seeing colors related to different emotions. It's rare, and not something that we would have just developed on the spot."

Malcolm looks back at the poppies. "You think they're the cause? Did you walk through them like I did?"