Matty Ambrose is a simple Muggleborn girl living in London. After the arrival of Professor Fig informing her that she was a witch, she knew Hogwarts was going to be much different than anything she could've ever experienced before and she didn't know what to expect. With friends, rivals, and enemies around every corner, her time at Hogwarts already beginning to be epic. Join Matty as she navigates her way through her 5th year at Hogwarts-will she rise to the occasion, or will the dark secrets of the school and the ancient magic she possesses lead her astray?

{𝗕𝗼𝗼𝗸 3} It is a known fact that Crookshanks was helping Sirius Black to capture Pettigrew in his rat form, back in Harry Potter's third year at Hogwarts. But what if Crookshanks was a human just like Moony, Wormtail, Padfoot, and Prongs? What if she was James Potter's twin sister? And why did Dumbledore do almost everything in his power to keep her identity a secret from Harry? This is the forgotten story of Jenna Potter. *** WARNING: Mature and sensitive content ahead [Marauder's Era] [OC's age: 15-21]