From the back of the book (translated):
The "Sea of the Seven Winds" holds many dangers and knows some frightening figures. The sea ogre is one of them, a creature, whose name one better only whispers...
To challenge just this monster, a group of young heroes formed up. Much speaks for the fact that they will not survive the meeting, but if they outwit the sea ogre they can tack immortal fame on their shields...
In the caves of the sea ogre is an adventure for beginners among the game masters and contains a multitude of details for an atmospheric game organization. But the undertaking that this is about is exciting, full of dangers and a genuine challenge - also for veteran heroes of the dark eye!