One Piece 607, [spoiler]

cover art is Franky riding a mecha-horse, racing against Mustang (wild horse)

T says he's in a hurry, so just dropping off the chapter title and coverart detail for now.

T's post, first half

Right as the volcano is about to erupt, van der Decken orders Ankoro and Wadatsumi to steer the ship and run
Luffy speaks to Nami, and tries to tell Surume to get further away, but Surume is already darting the hell out of there lol

The volcano erupts right after this
Magma is flowing through, and due to the temperature difference the currents are starting to become swirls,
but the Strawhats got away just in nick of time into a trench, and head further into the depth
As the Sunny jumps into the trench, rocks come raining on them

Zoro tells Luffy to hang on tight, he'll cut them, but Robin stops him.
This is a layer where the water pressure would crush them
Usopp uses his Green Star Sargasso to stop them, but some of the rocks got through and hit Surume who wasn't paying attention, and knocked him out

They fall further into the depth...
They finally reach 10,000m under the sea (the bottom of the trench)
They arrive at Fishman Island, surrounded by a massive bubble.

Sanji nosebleeds again lol
Surume was already tamed and used by the Fishmen, and even larger sea monsters surround him
New Fishman Pirate crew (a fighter, not captain) Hammond shows up. A pike eel (hamo in Japanese) fishman.
He tells Luffy we don't knwo if you're a foe or friend, but join us or else sink to the bottom of the sea.
The Strawhats decide to Coup de Burst out of the situation
"Alright, maximum Coup de Burst ready!"
Hammond: Alright, now decide to become our underling!! Strawhat Luffy!!
Luffy: Heeell no!! Morons!

This week end here.
The reason why they don't know if he's enemy or foe is because strickly in case of how they dealt Arlong, they consider him enemy.
But then they also consider him possibly friendly, because he helped Hachi and knocked out a Tenryuubito, just like Fisher Tiger did.

So they are confused what to make of Luffy, I guess

While Franky steers the ship, Usopp supplies him
van der Decken and co got caught in the eruption and got lost
Surume got scared of Hammond and a sea monster and ran away