Excellent ideas in here! I really like the backstory; there's a lot of meat and intrigue to this naval war between fae and orb weavers that this adventure could potentially launch in to. I really like the odd behaviors. If I get the chance to run this, I might hold back the other hooks (which are also very good) to give the PCs plenty of time to investigate the town. The ocean in the sickbay and medic on the island is such a great image.