bottle down and walked forward; he braced himself, saw the black
flames licking his body, but couldn’t feel them — for a moment he
could see nothing but dark fire — then he was on the other side, in
the last chamber." (Rowling, 287)
"It was indeed as though ice was flooding his body. He put the bottle down, walked forward, and braces himself. After going through a fiery portal, he appeared on the other side, in the last chamber."