(For the set up of the Aqurions and the group, I'd think it to be a mix of the two. But if anything I think the night ambush might suit them more as they're pretty good at beach ambushing, and sneak fights in general. But, I do think we can combine the ideas by making it to where they go for the ship, however ARE chased down, manage to get away, but actually don't due to the night raid, and then are taken to the underwater city.<br/><br/>Speaking of city, most of the city actually isn't in water, it's actually in a slightly moist and damp area inside a large coral/heavy strong glass hybrid dome. It leaks out moisture and mist as to provide the shark people with a stable amount of water, but keeping it easier to bring In trade materials and supplies and preventing things from washing away by keeping the dome free of lots of water.<br/><br/>I'd also imagine Seydon to be sorta actually conflicted, not just because he also has to save Sin's crew, but his own father. Now, if he had to be really honest, a part of him still loves his dad, and when he hears that his father has been diagnosed with the VERY SAME disease that killed his mother? Oh hell yeah, he'll find a cure with his best ability. But yeah, all of those can lump in maybe, depends on what happens? Lmao. I'm thinking that the cure is actually a rare fish.<br/><br/>This rare fish I'm thinking will have a special stomach acid that can be injected into the blood stream without melting the vessels, blood, or generally the person, but can melt the coral down to where it can get out of the system without creating clogged arteries. So yeah, more F I S H.<br/><br/>As for the last thing, they take people in through a large contraption that had taken years to build. It's a mix of primal technology from stone and gears, along with vines, stone, etc etc. But also used with magic. It basically is a large underwater bridge, that separates a large portion of the ocean and drains it out as to make a dry path to the entrance of the city. Or the simplistic version:<br/><br/>1: Magicians activate the magic needed to activate the large walls that block out water from coming into the underwater bridge.<br/><br/>2: Said walls drain out the water and create a dry path.<br/><br/>3: A now dry and safe path comes in with a road made of stone and vines that allows land dwellers to enter the city. It's quite long, but it's not to terrible.<br/><br/>Otherwise, I think we got it!)