"If you ever need me, I'll be at the Potter's." These were the words that kept on rolling around Regulus' head. His brother's last words before he left the house, bloodied and bruised. He didn't blame him of course. It must've been hell living as the only lion in a snake's den. To add to that, the constant torture from Walburga's wand (he never called her mother in his mind). But sometimes he wished that he hadn't declined the offer to run away with Sirius. Afterall, they were brothers. But Regulus has a plan, to bring Voldemort down from inside. And it would've worked too, if his best friend hadn't barged into that cave, with a few...well, time travellers. If there was one thing Regulus hated, it was when his plans suddenly changed. And that's what happens when he's suddenly on the track to defeat Dark Shadows, with his insufferable brother tagging along. Regulus soon learns that some things are meant to happen, and some people are just more that what others expect of them, like him. A Harry Potter Fanfiction Note: this doesn't stick to the canon storyline