After the events at the Cave of Tides, the Light Warriors wake up at the Inn at Amur. There they find their Enterprise has been chained to the shore, and its key is in the hands of Goldor. To reach him at his manor they must cross the bottomless bog to the south of Amur, and for that they need the Levigrass Shoes.
Meanwhile, Four Old Men who think of themselves as the real Warriors of Light discover this and plan on obtaining the airship first. Thus, they all head to the Sewers, where the Levigrass Shoes' owner, Delilah lives.