Fourmille, Yuri and Sigisbert are on their way to Rome, the eternal city where the pontiff reigns, who directs these often kind and sometimes monstrous creatures, the Preshauns. Fourmille hopes to find the answer to the question: what does she do about Ekhö? She will quickly understand that the Preshauns hide a great secret, and that she herself is a piece in a complex political game...