About R.A.B.

[chieky_93]

No: HPFGUIDX 156660

As the letter inside the locket said "THE DARK LORD" means that the
person knew Voldemort personally as the person has given his initials
clarifies that he has known Voldemort. I guess that R.A.B. is Regulus
Black. The letter said that "I will be long dead before you read
this." Somehow shows that he was going to betray Voldemort so he will
be killed soon and it also said that "It was I who discovered your
secret" - this might be reason for his betrayal.

chieky_93