"Missing what?" I asked him, feeling a little worried that he noticed something amiss.
"In Yoon-Ah's drawing, the man was wearing a short-sleeved shirt, and on his right arm—at the edge of it, I saw a glimpse of a tattoo," Agent Helios explained. "It looked like the end of a tail of something—like a snake, but I'm not sure if it's a snake since the rest were covered by the sleeve of his shirt."
"A tattoo?" I murmured to myself, wrinkling my eyebrows in the process. I looked at the pictures again since I remembered there was one where he was wearing a sleeveless shirt. I picked it up, showed it to Agent Helios, and added, "But this man doesn't have any tattoo on his arms."
