in the end , when all seems lost-when valentine stands at the edge of lake lyn with the mortal cup and mortal sword in hand ; jace lies dead on the ground ; and clary is devastated and hindered by runes that prevent her from speaking , separating her bound wrists , or walking-she grips a stele in her bound hands and , with a few swipes , draws over one of the runes valentine has written to contain and control the angel raziel .