The gimmick of this adventure of course are the horny crabs. The backstory is a bit generic, but the enroused McGuffins and the NPCs being a bit goofy (NPCs who do not know, what they don’t know, the four elder man) make it much more endearing. It lacks direction, though. In ten days something specific must happen, which the players only learn, if they didn’t do something that seems to be the theme of the story (crushing citin). The bad end comes off left field - where does that cyclops come into this?
I like this submission for it’s people, but to run it it would perhaps need something like a timetable with fixed events happening on different days to move things along.