One Piece (Omnibus Edition), Vol. 16: Includes vols. 46, 47 & 48

As a child, Monkey D. Luffy dreamed of becoming King of the Pirates. But his life changed when he accidentally ate the Gum-Gum Fruit, an enchanted Devil Fruit that gave him the ability to stretch like rubber. Its only drawback? He'll never be able to swim gain-a serious handicap for an aspiring sea dog! Years later, Luffy sets off on his quest to find the 'One Piece," said to be the greatest treasure in the world...
A mysterious floating treasure tempts Luffy and his Straw Hat crew into the treacherous waters of the Florian Triangle. Before they know it, they've sailed into the maw of Thriller Bark, an extremely creepy zone populated by ghouls and ghosts and an awful lot of zombies. Soon the crew has lost their shadows to a very nasty enemy-Gecko Moria, one of the seven warlords of the sea. Will Moria make zombies of the Straw Hat crew?!