Back to the Rance, Koc'h joins the Emerald coast to reach Rotheneuf. He finds there a strange parish priest, deaf and mute... Abbé Fouéré... The latter sculpts the rocks that border the bank of pink granite. Our two characters have concluded a mysterious pact. What is it? Koc'h will tell us why the wolves haunt the forest of Huelgoat, the nights of full moon, and who is the strange father Jakez? What dark legend do the rocks of Rotheneuf tell us?