Again, why I’m supposed to like Jace again? Why am I supposed to think that this man is so smart? He put a mark on Clary, and he wasn’t even %100 sure that she wasn’t a mundane. And Yeah, I said earlier it was more than obvious that Clary wasn’t a mundane. However, this is Clary’s life Jace was gambling with. She could have been a Forsaken (which I gather is some type of soulless zombie). Now admittedly, there could be a valid argument that Jace didn’t have enough time because Clary was quickly dying because of the Ravener’s poison. Yet, what really convinces me that Jace just didn’t care was his complete lack remorse for what he did.
Another problem I have with this passage is that nobody noticed a mark on Clary at all. I mean there has been more than a few people watching Clary since she was brought into the institute, but t no one noticed a mark on her body. Especially, when the mark was put on her wrist? Did it dissolve, or was it still there? This is a plot hole, that once again could have been solved with just a sentence explaining what happened to the mark.