We Both Die in the End...I Think

We all know there was a time before the war that the Marauders were happy, a dysfunctional chaotic family. A time when Regulus was just a teenager, when his friends were good people, when he got along with his brother. And then the war happened.Kreacher reveals to Harry that Regulus and his Uncle are alive, living in the Muggle world with no memories of their past or what they are. Harry, Sirius, Remus and his friends seek them out on Kreacher's request."Um, Hello?""Jem...""That's my name, yeah. Who are you lot?"The scared of the two men stretched out his hand, "I'm Moony. It's good to see you." Jem reached out shaking his hand, and stumbling forward."Jem, baby who was there?" His hands shook as he looked from them to the group of people, "Jem?""Reg....Moony what happened? Moony I'm scared.""I know. Breathe. You guys did quite the spell.""Who are yo- Jem?!" A man, with matching grey blue eyes to Sirius rushed to Jem's side, his hair was black and curlier than Sirius, and he framed Jem's face, blinking and stumbling to the ground moments later."Easy, little brother."