Not a very fun or exciting adventure for Tier 4 characters. Throwing at most CR5 monsters with stupidly easy to avoid encounters. For a Tier 4 adventure this was very lack luster. Trying to challenge Tier 4 characters I understand can be hard since players bring crazy shenanigans at that high a level. The fear of death should be hanging over head most of the time at this level. The idea of the Eye is amazing, just need a harder challenge than a stupid Dragon Turtle for a boss fight. Kraken Society and no Kraken? Come on, not even trying at that missed opportunity.