After having stolen from high struggle the Ramor Conque to Shan-Tung, Bragon, Pélisse and the Unknown Mysterious (a providential rescuer who refuses to remove his mask and reveal his identity) go to the March of the Sails of Ecumus, domain of the Princess-Sorcercius Mara. The latter waits for them to recover the conque and tell them the purpose of their next mission: go read the runes buried in the bottom of the Temple of the Obligation because they alone reveal the name of the country where the Bird of Time is located. The Temple of the Obligation, the most dangerous place of all Akbar. No one dares venture there, not even the Jaisirs who have custody of it. Only a madman would have the daring to enter it with the hope of exiting alive. The Reticences of Bragon is added to the fact that he will have to endure during the journey the presence of Bodias, prince-sorcier of the Walk of the Milles Verts, the penitables, the penitentials of the Penitentisary Penitentis-Ber, the penitentis, the penitentis-res, the pentients will be the pentients of the pentients, the pentients, and the pentients, the pentients, the pentients, the pentients, the pentnts, the pentnts.