Praying for this to be a joke.Zeo seems to have learned Soru! See how he ended up behind the crowd without them noticing!?
But on that subject, it may have been stated already but I'm banking on Zeo having a sort of camouflage-ability, relating to his inspiration, the carpet/wobbegong shark, which excels at disguising itself on the seafloor to catch prey.
Truly incredible chapter; I've never been so excited for a flashback. I think the Sabaody/Arlong Park resemblance is insanely cool, and I feel like a large part of the flashback is going to offer evidence to Arlong's motivation for his actions (not in a redeemable sense, no, but in an interesting one. Getting inside the minds of the villains is one of my favourite parts of this manga.)