 The barber notices that after shaving the hair on the boy's head; that he also has a similar tattoo.The barber introduces the boy to the girl (Maïan) whom he discovered as a baby; and they inform him that he is a "clef de Babel" (a key of Babel), that there are five in total and that each of them has a specific "power", Maïan is able to walk through objects and walls, Maïan then explains of a disc she saw in a temple which had a marking on that was very similar to their tattoos.They agree to steal the object, which they do.