Chapter 606

Chapter 606 is called "Adventure in the Ocean Depths".

Cover
"Robin reads a book under a tree with a canary like bird singing on it" requested by P.N.Yuuki-san

Short summary.
The crew continue their journey down. Ussop is seen calling for Luffy Zoro and Sanji. The crew see jellyfish around them and one of them sticks their tentacles in the ship and Chopper tries touch it, but is warned not by Robin. Franky uses the Coup de burst to avoid a Sea Devil. Brooke realizes that Coribou is missing only for him to be shortly caught by Frank who locks him in a barrel. They are attacked by the Sea Devil that ate the jellyfish only to be saved by Captain van Dekken's men. They turn on the Straw hats realizing they are enemies, Luffy, Zoro, and Sanji come to their rescue having tamed the Kraken who they have named Surme.