One Piece, Vol. 15

Nami, the navigator of the Straw Hat crew, has fallen ill, and the ship Merry Go has no one to steer it. Monkey D. Luffy and the rest of the crew have one option left: find land and hope a doctor lives there.

They reach Drum Island, a place locked in permanent winter. The island turns out to have only one medical professional, and she is said to be a witch. With Nami's life at stake, Luffy heads out across the snowbound fields to find her, witch or not.

This is volume 15 of the One Piece manga. The series follows Luffy, who dreamed as a child of becoming King of the Pirates. He accidentally gained the power to stretch like rubber, and the price was losing the ability to swim. Years later he sets sail with his crew, hunting for the One Piece, a treasure rumored to outshine every other on earth.

The volume is an adventure with a comic streak, built around a sick crewmate, a cold, hostile island and a deadline that is hard to ignore.