Caution (August 2025) : the loose ledge in the middle of the traverse has been strengthened with a piece of wood and one should verify the solidity of the system before trying this problem.
Sitstart left in the dihedral at the character "H", traverse to the right all the face (without convention) up to the exit of Catastrophe Annoncée (prolongé), come back and exit by a mantle above the starting point.