A loud, deep rumbling sound echoes through the air: "BUOOOOOH!" Nami, looking slightly concerned, says, "I WOULDN'T BE SURPRISED IF THAT'S JUST NOISE FROM THE WIND. THE TERRAIN HERE IS QUITE ODD AFTER ALL." Luffy laughs excitedly, throwing his arms up, "WHO CARES! WOOHOO!" Zoro looks back, asking, "HM? DID YOU HEAR SOMETHING JUST NOW?" Sanji suddenly points forward in alarm, "NAMI! THERE'S A MOUNTAIN UP AHEAD!" Nami is shocked, "A MOUNTAIN? THAT CAN'T BE! ONCE WE PASS THE TWIN CAPES UP AHEAD, WE SHOULD REACH THE OPEN SEA." Usopp looks through his goggles, sweating, "WHAT'S THAT..." The loud sound repeats, "BUOOHHHHH!" Luffy tilts his head in confusion, "HM?"