[He can see through the flames a little bit - which means the stretch isn't that wide. If he ran fast enough, since he's still wearing his gym clothes, he might be able to get through with minimal burns...but he's not risking any damage to Korosensei's final gift, not yet.

Options. What are his options here?]

I have a book with me. I'll have to go around. [If he heads right....there's an alley that doesn't look overtaken yet, but there's no guarantee there's a way out on the other end. Left, there's open road, but the flames are rapidly closing the gap and there's no telling how far there is before a way to the other side of the wall of flame.

Right it is. He takes off. Should keep talking, so they don't lose track of eachother.] Where did this come from?