While the merfolk's kingdom is under attack by the humans, Luffy escapes the castle on Fish-Man Island with the princess and they head to the Fort of the Sea.
General Note
Translated from the Japanese.
"First published in Japan in 1997 by Shueisha Inc., Tokyo"--P. facing t.p.
"This book reads from right to left"--Cover p. [4].
"Parental advisory: One piece is rated T for Teen and is recommended for ages 13 and up. This volume contains fantasy violence and tobacco usage"--P. facing t.p.