Our vigilante and his friends are trained on the mysterious Island of La Conque on which the Rose Ecarlate will discover a little more the past of his fiancé Guilhem and pierce a secret hidden by the sea around. Maud and Guilhem manage to recover the money destined for an orphanage during a rixe where Guilhem uses a secret boot that Maud did not know him. A prodigious weapon pass that was taught to him by his former master of acariaster weapon. They will soon meet this master of weapon that is absolutely not as Maud imagined. Besides, he is neither old nor acariaster...