There was a snake in the battle between Itachi VS Sasuke.
http://www.onemanga.com/Naruto/393/16/
After that battle the snake move out.
http://www.onemanga.com/Naruto/394/01/
But than it got burn
http://www.onemanga.com/Naruto/394/03/ shows the snake got burned up
than rain happened u think he...