Does anyone know shit about the island off of the lost ocean in POS? I am seriously stuck.
Basic rundown. Got a shit load of keys. Don't open shit but a hole that has a potion of return. A fucking potion of return! Found first key for Tower door. Second Tower door is like Fort Fucking Knox. And there's a chest at the bottom of the ocean I may as well poop on.
FUCK!

Help is welcomed at this point.