Masira heard Mont Blanc Cricket's instructions and immediately sent sound waves into the sea.
His crew leaned over the side of their ship, listening to the echoes through special instruments.
Put together, it was the One Piece world's version of sonar.
"Large current at twelve o'clock!"
"Massive creature detected at nine o'clock! Probably a Sea King!"
"Waves moving against the current at ten o'clock! Could be a huge whirlpool!"
Masira's crew was in a frenzy, and their impressive-sounding reports had Luffy and the others shouting with excitement.
Masira called out, "That's it! Straw Hat, turn the rudder to ten o'clock! It's about to erupt. Head for the whirlpool, and don't back down!"
Usopp hurried to obey. Suddenly, a huge wave struck and lifted the Going Merry clear out of the water. The ship pitched violently, and before anyone knew it, Rubick was lying on the deck.
The Seastone had already left him barely able to fight. Now, after being tossed about by towering waves, he was nearly out of his mind.
The sea, calm only moments ago, had suddenly formed a whirlpool. Its reach was enormous, and the Going Merry had already been drawn in without anyone noticing.
Mont Blanc Cricket shouted, "Follow the swirling current to the eye of the whirlpool. Then a current will carry you into the sky. There's still time to turn back!"
Luffy gripped the railing with one hand and held his straw hat with the other. "Sky Island is our destination! Going Merry, full speed ahead!"
Usopp went limp. A jolt from the waves sent him rolling across the deck until he came to rest beside Rubick.
"Uncle, I want to go home..."
Fighting back the urge to vomit, Rubick said, "This isn't a ship you can just leave. Our captain already has his