I got the idea from reviewing Clare's last book when (spoiler alert) Sebastian kisses Clary and confessed his feelings for her. I then remember the binding rune and went from there. Sorry if it weirded you out. Also I will update before the new year but as most of you im spending the holidays with my family. So please be patient. Thanks for the support!
Paranormal, angels, demons, mermaids, witches, ect.