I thought the point was that TWO people can't go across the water in the boat?? Remember Dumby said that the only reason Harry was allowed, was 'cause he was underage and therefore didn't count?! Regulus, or whoever it was that took the locket/Horcrux, had to be with a house elf or another underage magical or had to be underage themself.

Reggie is described as being 'the younger brother'. How young was he? Was he underage?? He was at Hoggers, in Slytherin but did he ever graduate before joining the Death Eaters?? Remember that Voldy made underage Draco a Death Eater. Maybe Reggie was too... naaa! We would have heard if he wasd under 17 don't you think? Therefore, who was he with??

Did he have his lovely/rich Uncle Alphard with him?? Does this explain the shift in text/writing?/alignment in the initials; that 'R' stands for Regulus and 'A' stands for Alphard and the 'B' was for both of them??
How did they both get across if theyt were both of age magicals?? Impossible

I don't like the idea of Kreacher coming along with both or either of them 'cause I think it might have come up by now. I think Kreacher would have enjoyed telling; 'letting slip' to Sirius and others about this.

What do you think about someone, probably Reggie but not necessarily, being accompanied by Dobby (under Lucius's orders- he would be ashamed and there's heaps of stuff he doesn't reveal) or even Winky (Crouch Jr being a DeathEater 'n all) ...????

There's the other alternative that someone younger / an under aged magical, went with ... Reggie, or whomever, but the possibilities are pretty scary... Tonks ??? naaa! Yuck!

I LOVE the idea that Regulus got his revenge on Voldy and Co., by pisoning himself but getting and hiding his Horcrux somewhere in Black Manor!! Sweet and v. cold vengence!! How funny that it should turn up in Kreacher's 'nest'. How could he do it on his own???????????