Colin sat down almost instantly, doing his best not to let himself shake. "I..." This wasn't a good way to start. He closed his eyes and took three deep breaths before quietly opening his photograph book. "I want to show you something. I need to show you something." And really, he did...in his own way. He found a picture of Zach, pointing to it. "This is you before." He paused before adding, "When you were on the potion."
After he let him look at it for a moment, he turned to a different photograph, his attention drawn to it for a moment. "This is after. There's a difference...I've been looking at pictures for a while trying to pin it down exactly, but I think I figured it out. Do you know or should I tell you? I don't think it's very obvious...unless you knew before..."