Ms. B is a wealthy woman living in New York who has spent years waiting for the opportunity to meet Namor. She recognizes the importance of the Sub-Mariner's return to the surface and sends her agents Freddy and George to locate him before the police can capture him. After Namor is arrested, Ms. B uses her wealth to arrange his bail and bring him to her home.
Ms. B then reveals that she is Namor's grandmother and explains the tragic history of his parents. She tells him how her son Leonard McKenzie fell in love with Fen of Atlantis, how Leonard was killed by Atlantean soldiers and how Fen returned to Atlantis before giving birth to Namor. Ms. B offers Namor the opportunity to remain on the surface and inherit her wealth, but she ultimately accepts his decision to return to Atlantis.