This is volume 5 of the Avatar Last Airbender series.
In search of their long-lost mother, Fire Lord Zuko and his deadly and insane sister Azula have brought Avatar Aang and his friends into a mysterious forest, but what they discover within may be more than they can face. Will they too be lost in these woods forever?
80 page softcover digest DARK HORSE COMICS
(W) Gene Luen Yang & Various (A/CA) Gurihiru