Throughout her life, Diana Greengrass was raised to hate all Muggles and Muggleborns, fear half-breeds such as werewolves, believe that Divination was a useless class, and to detest the idea of romance and falling in love. Although Diana never expected that all her beliefs would change in a single year. That was until she met a mysterious boy in Diagon Alley, named Remus Lupin. It was mysterious, because on their first encounter, only a few weeks before the start of their fifth year, Diana experienced something that terrified her: the moment she accidentally touched Remus's hand for the first time, Diana felt a cold and dark feeling rush through her body. Thinking that the mysterious boy had probably jinxed or cursed her, Diana ran away from him, unaware that the vision she just had was going to change her life forever.

Sirius Black told Harry, Ron, and Hermione that he only has three friends named James, Peter (yeah, tight. We know that he is a traitor), and Remus. There, he got wrong. He has five friends. The one and only girl on the Marauders Group. She would return. Return to find the things she missed while she's missing. And tears and remorse and sadness will come back. *All characters belong to J.K Rowling. I also give credits my story to padfoot13 as he/she is the one who gave me this idea when I read his/her story.*

Sirius Black told Harry that there were four Marauders. He told Harry that his best friends in school were James, Remus and Peter. He told Harry that there were three unregistered Animagi at the time he was at Hogwarts. He lied. There was another, only one other, who Sirius never mentioned. Perhaps because they had a falling out... perhaps because something happened to her. Rowan Mulciber is the missing Marauder, and this is her story.