Thanks to Doron and his drone friends, Berry, Hack, and Finn are able to reach Mark Twain, a strange facility floating in the sky. By using the Angelfish club card they had previously obtained, they manage to get inside, where Berry and Hack enter Mark Twain's rendition of the Hyperverse. What they discover appears to be a labyrinth. Knowing that all the secrets of Tom Sawyer island must be contained within, Berry and Hack start searching for Phantom Zero's identity.
Phantom Zero... Where are you?
الطيف زيرو... أين أنت؟
Phantom Zero … Wo steckst du?
Fantasma Zero… ¿Dónde estás?
Fantasma Zero… ¿Dónde estás?
Fantôme Zéro…
Où peux-tu bien te cacher ?
Phantom Zero... dove sei?
Fantasma Zero, onde está você?
Фантом Зеро…
Где ты прячешься?