Chapter 115

Vivi has started to warm to shipboard life and the easygoing spirit of her new companions aboard the Going Merry, though she keeps cautioning them never to take the Grand Line lightly. The voyage stays calm until they reach the island Miss All Sunday warned them about, a humid jungle crawling with bizarre creatures. While Nami hesitates to leave the ship as the Log Pose resets, the rest are eager to explore. Luffy, hungry for adventure, strikes out to investigate, and to Nami's surprise Vivi tags along to take her mind off her fears, dragging a reluctant Karoo behind her.

Once the explorers depart, Sanji asks Zoro to bring back game since supplies are dwindling. Resenting any order from the cook, Zoro fires back that he will haul in something larger anyway, and Sanji, refusing to look weak in front of Nami, turns it into a contest over who can deliver the greatest weight of food. Out in the forest, Luffy and Vivi piece together that the place has stalled at the dinosaur age, an island frozen in prehistory. Back at the ship, Nami and Usopp sit uneasily alone until Nami digs up a book that explains the island's name, and a towering shadow suddenly closes in on them.

This installment marks the first appearance of Little Garden and the debut of its prehistoric wildlife, including an Archaeopteryx, an Ammonite, and a Brontosaurus, along with the crew's first encounter with a giant, shown only in silhouette. The Zoro versus Sanji hunting wager ignites the long-running rivalry between the two. It is also the opening chapter of the Little Garden Arc and the first time the series begins an arc with the word "Adventure" in its title, a pattern that recurs across many Grand Line arcs. The cover continues the Koby and Helmeppo bonus serial.