Ecsan and her twin brother Iven seek adventure in the mystic and legendary Star Current that connects the Seven Worlds. However, when the otter-like syans arrive on the Lasmarine, a member of the crew is arrested on charges of thievery and murder, and they must depend on the antics of the otter Skipper Fadrin to head out the original mission: solve the disappearance of the Rano, an earlier starrunner that mysteriously vanished in an unexplored area of the Current. Meanwhile, the Ferret Lord Vustra seeks justice...