Hunter x Hunter Vol. 7 (manga)

Gon and Killua are diligently studying the ways of Nen with master Wing at Heavens Arena. When Gon successfully completes the Nen teachings, he also passes the final (and secret) test of the Hunter Exam. But more importantly, Hisoka has finally deigned to accept Gon's challenge! Can Gon get close enough to pay Hisoka back for the favor on Zevil Island, or will the insane magician send Gon home in pieces?