Already a pirate before the time of Roger, “Humming” Brook (ブルック Burukku?) first enters the Grand Line as vice-captain of the music-themed Rumbar Pirates. Leaving their pet, the infant whale Laboon, behind at Reverse Mountain, they promise to return after sailing around the world. Instead, they are annihilated, with one exception. The power of the Paramecia-type Revive-Revive Fruit (ヨミヨミの実 Yomi Yomi no Mi) allows “Dead Bones” Brook to rise again and live a second life as a skeleton. Fifty years later, Brook’s goal is still to fulfill his late crew’s promise and to that end joins the Straw Hat Pirates. Brook is an excellent musician, who says that he can play any instrument, although he is usually seen playing the violin. He can even influence people with his music to the point of making them fall asleep. While separated from the other Straw Hats, and incognito as “Soul King” Brook, he gains world fame, filling concert halls with fans. He is also a skilled fencer, who uses a shikomizue (a Japanese cane sword) in battle. His reduced weight allows him to jump extraordinarily high and to run across water. And eventually, he learns how to use his devil fruit ability to leave his skeleton body and explore his surroundings as a disembodied soul. He is voiced by Chō. Ian Sinclair provides his voice in the Funimation English adaptation.The idea of a skeleton musician was first conceived by Oda in 2000, about the time of Laboon’s introduction and more than half a decade before the first appearance of Brook.