"I failed to take Voldemort down and it cost them their lives. - No Remus no. I have this unwarranted, unwanted second chance at life. I am going to destroy the horcruxes. I'm going to make it so the next time he comes he can be killed. No more death, no more loss. Harry deserves more. Better." Or Regulus had a plan, he was doing his best. He might have lost the plan along the way. He might have lost everyone along the way. This is him trying to make it right, By TheIdeaOfSarcasm on A03 (ALL CREDITS GOES TO THE AUTHOR !)