Nice chapter, and indeed we see how much of a prick Hordy and how insane Decken is. Its also another nail their coffin. If a noble shooting Hachi got him punched in the face. You can imagine what Luffy gonna do to the two when he finds out.
More backstory of the island which indeed sounds intriguing. Van Decken gotta be behind that assassination. I'm guessing he originally wanted the queen but she refused and he killed her for it and now wants her daughter. Would really show how depraved he is. Also got the feeling Caribou is going to be in sea forest area too. I mean Luffy is in broad daylight riding a shark. No doubt someone gonna spot him. Especially if Caribou is still gunning for Luffy's head.
Also I wonder about how much the seniority the New Fishman Pirates have. Hachi was obviously their senior but from the dialogue, it doesn't sound as if they've been a crew for very long. That would be some good irony, Luffy's group was still in it infancy when they faced Arlong Pirates, who no doubt had much more experience in being pirates yet Luffy's bunch came out victorious. Now the Straw Hats have had their fair share of experience themselves and face a junior group of pirates. The fact these guys have to rely on a drug just proves this theory more. At least Arlong was going by his own strength.
Bonus irony points for Hordy thinking Arlong was "too savage" when he has to go to berserk mode right off the bat. And yeah I agree with whomever said Arlong's cheapness was his downfall. If Hyozo had been there at the off set, no doubt the Straw Hats would've lost that fight. Hehe can't wait for his match with Zoro and see if he can put his money where his mouth is.
So yeah, the players are set and the ball now rolling. Time to see where it goes.