Page-Blanche and his brother Zuynn, settlers despite them of the newly discovered Troy world, are in search of their parents, renowned botanists. Fortunately, they have left, in the form of plants, clues to find them. But the road of Page will again meet that of Lord Van Laack, who, together with a local hobereau, raises an army to besiege the den of the two botanists. Page and Zuynn are captured and find themselves at the mercy of their worst enemy, delighted to be able to satisfy his vengeance... A key album in the adventures of Page-Blanche, served by the precise and imaginative drawing of Ciro Tota and the mordant dialogues of Arleston. The outcome of the quest is approaching, and the tension is stronger than ever.