To help Bat and Bing Batterton in their investigation, Zagor and Chico board the ship Blue Queen, where a mysterious apparition appears. But, apart from the mysterious specter, the ship hides some other dark secrets...
Black Deer fraudulently wants to become the chief of the Salishes so that he can trade dubious goods with the whites with impunity, but the Axe Ghost manages to throw him out of the village with all his supporters...
In this episode, Zagor once again has to deal with vampires, namely the captain of the monster ship "Black Ivory" Van Zant and the well-known Ylenia Varga, a red-haired bloodsucker, dangerous and equally beautiful...