city of glass by cassandra clare its about clary wanted to save her mothers life clary and her brother found out that there was a way.i chosed the book because one its the tierd book in the series and i love these kind of books 

clary wanted to save her mother life but jace wouldent help her so she did it by her self but jace cought up to her and he helped her find but when they got back the town was full of demons

two things i liked was it was very intresting and fun to read i dident hate nothing about this book the age group is 6th and up twilightfans woul love this book.