Regulus stood in front of an unfamiliar door. It was Black and shiny with a bronze door knocker with a lion on it, which was at least a hundred years older than the door. He pushed his hands back through his hair and sighed nervously before lifting his left hand up to knock the door, thinking to himself that the lion must have been the choice of the house's occupant. Shoving his hands anxiously into his pockets he waited for what felt like a lifetime before the door. The man in front of him had changed little since he had seen him 3 years earlier, he was tall with dark hair and eyes which portrayed little other than shock and a slight fear.

"Regulus." He said stiffly.

Regulus smiled, "How are you brother?"

When Sirius didn't answer but just stared with a strange expression on his face Regulus continued, "Times are dark and it is probably better if we move this conversation inside."

Sirius again remained silent but stepped back to allow Regulus to step into the dark hallway. Inside Sirius pointed to the door on the left which Regulus opened, finding himself in a comfortable looking living room he collapsed down onto a leather recliner chair. After playing with it for a second, trying desperately to ignore the tension between him and his brother, he moved the chair into an upright position and leaned forward with his elbows on his knees.

"Well Sirius, I can honestly say I can never remember you being this quiet when we were growing up."

Sirius remained standing beside the door, his hand in his back pocket ready to reach for his wand. "I am waiting for you to explain what you are doing here."

Regulus paused for a moment. He had thought so much of what it would be like to see his brother he hadn't figured out what he was going to say, if he was honest he was half expecting Sirius to slam the door in his face.

"I wanted to do you a favour and ask for one as well."

"What do we have to offer each other." Sirius sneered, clutching his wand tighter.

"A lot more than you would expect." Regulus sighed, "They are watching you. The Deatheaters. Today was my turn so I took the opportunity to talk to you. They are using you to get information on the rest of the order's whereabouts. You need to be more careful. And you might want to warn Remus Lupin to move house, we know where he lives and it is only a matter of time before Voldemort orders his death." Regulus looked over and saw a pained expression on his brother's face, no doubt caused by the idea that he was endangering his friend. "there is more."

"What?"

"They are planning to kill you. I am sure this is not a surprise to you, you are too close to Dumbledore for Voldemort to overlook you. Cousin Bellatrix has asked for that particular honour. She seems to have taken your abandonment of the family as a personal insult. They won't hurt you yet, you are still of use to them, but it won't be long till you will have to consider hiding."

Sirius nodded, he looked Regulus in the eye and could tell he was being truthful. His grip on his wand loosened and his upright stance reduced somewhat. "Why are you telling me this? If they found out surely they would kill you"

"Yeah they would" Regulus said grinning, "But you are my brother." He replied seriously, "We may have had our differences but that doesn't mean I want to see you killed."

Sirius nodded. "likewise"

Regulus laughed. "Wow, this is definitely the most emotional conversation we have ever had."

Sirius chuckled as well. "Yeah, for us "I don't want you to be killed" is like "I Love you.""

They stood amicably for a few seconds smiling at each other, before Sirius moved to the sofa and stared at him, arms folded, "So Reg, what is this favour you are after."

"It is a long story, and one which must be kept a secret from everyone. Even James, even Peter and Remus and even Dumbledore." Regulus sighed and rubbed his eyes wearily, "I guess I will start with happy news. I am married."

"Congratulations, I didn't see an announcement in the Daily Prophet or hear about it on the grapevine. Who is the luckily girl? Do I know her?"

"No, no one does. No one even knows that I am married. You see Hannah is a muggle."

Regulus explained the whole tale to his surprised looking brother explaining how they met, how Nana Melania had found out, about their reunion, about the baby, about their quick march down the aisle.

At the end Sirius sat looking at the ultrasound photo of his niece or nephew and just replied "Wow."

"Yeah."

"So why are you telling me this?"

"Because I need your help, I think I have found something, that if I can destroy I can help defeat Voldemort. But it is dangerous and I don't know how I will escape the cave alive. I want you to help me get out."

Regulus asked his brother to meet him in the cave, to stay hidden until Kreacher had left the cave and then to help Regulus who would undoubtedly be injured get out. No one must know he had survived, not even the house elf. To all of the world it must look like he was dead.

Sirius was overwhelmed by the information. He was torn by disbelief and affection for his brother. He was shocked and appalled by the usually sensible Regulus for abandoning reasoning and risking his life for a muggle girl, it was as if the stuffy, sensible boy he had grown up with had magically transformed into someone entirely different. He thought back to a recent conversation with Dumbledore where the old wizard has said that nothing was more magical than love. "Maybe this ia another example" he pondered. But at the same time, this was his brother, his mother's favourite, golden boy, loyal to Slytherin, an admirer of dark wizards, obsessed with pure bloods and a deatheater. Surely he couldn't have changed that much?

Sirius was silent for quite a long time before he opened his mouth to speak. "I am not sure. How do I know this is not a lie, that I won't just go to this cave and find deatheaters waiting for me. We all know Bellatrix likes to play with her food, I don't particularly want to die that way brother. And even if there isn't deatheaters, it is sure to be dangerous. Why should I waster my life for you?"

"I suppose you cannot be sure this isn't a trick, but trust my word, I will not betray you. And yes, it is a big risk, but it is not just for me you will risk you life, it is for my wife and child as well."

Regulus left Sirius's house moments later, unsure but hopeful that his brother would help him. He returned to the position he was in before watching Sirius's home, where he was meant to stay until midnight but where he would be leaving early. As he leaned against the wall he tried not to think of the task in front of him, but when his mind drifted to his family he tried to recall all of Quidditch world cup winners in history.

So I know that some of you guys having be calling out for him to go to Dumbledore but I wanted to keep it as close to the book as possible and Dumbledore doesn't find out about Horcruxes until years later. I couldn't see a way for him to help without Regulus having to tell him about the locket, whereas I felt he should try to reconcile with his brother before whatever will happen in the cave. After all Regulus now realises Sirius was right all along about Voldemort and the pure blood stuff.

Apologies that I said Regulus was going to a non-existent state in the last chapter, clearly geography is not my strong point. I might go back and change it.

Also sorry for any spelling mistakes or random words in the chapter.

Please review and thanks to those who do.