Highest rank: #2 in Mystery/Thriller Obsession is deadly. That is what highschool senior Helena Blackthorn, a bullied outcast of Jacksonville high, realized after a series of murder that took place around her. A mysterious killer is all out at killing all people at Jacksonville (and even wherever she goes) who grow too close or too rude with her and leaves a stalk of lavender and love letter addressed to her along the corpse of his victims. Who is the killer and how could she escape his deadly obsession?