Mrs. Gilbert Vail claims she had a love affair with
Francisco d'Anconia in his villa in the
Andes. Afterwards, she shot her husband so she could leave him and be with
Francisco.
Gilbert Vail survived and sued for divorce, at which point his wife promised to reveal the sordid details of his private life to the press.
In Section152 we learn that Francisco was in El Paso, Texas, not in the Andes, at the time when Mrs. Vail claims to have been with him.
Mrs. Vail is mentioned in:
Section141
Section152