From the moment they step onto the Hogwarts Express, the Marauder's Fourth Year at Hogwarts is explosive. Laced with friendship, love, hate, and all the emotions in between, the mysterious, adventure filled year may be the one that changes everything - at least, that's the promise of the new divination teacher...

{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]