"Uh - that might not be the best place to keep a magical weapon that has a tendency to burn things." Despite the assumption that the sword had been safe there for so far, Alec couldn't help imagining Clary's house bursting into flames because something set off whatever spell was cast on the blade.

"Training?" He assumed that was what she meant. What could he say without discussing the past.
"I have and I have practice weapons we can use. Magnus and I are still trying to figure out what styles we know so we haven't been using anything that could cause a serious wound."

He understood Clary's frustration since he wanted to know what his strange memories meant but he also knew that pushing wasn't going his memories return at the pace he wanted. "We can try to figure it out and I might be able to tell you what your Mark means. I started remembering what mine are."