Regulus, the adult, not the younger version, had had a rough night. Not that the younger's adventures thus far hadn't been tough, showing up in a strange castle in the company of strangers, and far from home - home being his brother. But Regulus had already put out two fires that night with both younger version of Al and Jamie showing up and then locking themselves in the bathroom, while younger Al teetered on the verge of a panic attack. A fun night that, only it didn't end in a sleep in for everyone. Nope, now Regulus had a smaller version of himself that he was trying to sort out.
After convincing his younger self that he wasn't going to harm him, a conversation mostly consisting of Regulus talking while his younger self stared at him silently (he'd forgotten how he could get that silent) he'd shown the boy how to use the cell phone. He figured it would keep him occupied while he tried to figure out what to do.
He slipped out to grab a jumper and a pair of socks, as all his younger self had on were pajamas and while the heat might be working in this place, and spring was there, it was still chilly for little boy. When he returned it took him a second to register there was another boy in the room. Another boy who was so achingly familiar.
"Sirius?" he said reflexively.
Shit! If a younger version of his brother was there meant he would have to deal with the older, too. And they had been doing so well pretending the other didn't exist. The long night had turned into what was sure to be a long day.
"Al, I need your help."
Regulus' eye lingered briefly on the protective way Sirius guarded his younger brother before he sighed, turning away to shut the door. "You two should sit down." Not that he expected a defiant Sirius to listen to him.