There was no clear distinction. No one could tell who the woman bearing the face of the Saintess is. It could be the Saintess herself but was there really no chance it could be Isabelle? Estelle wasn't too certain. Isabelle that she saw was so determined to go against the Saintess, not wanting to strengthen the Saintess's power by working together with her which was seen by the Saintess as a betrayal.
But Servius didn't lie. If he did, Magnus would have noticed. To add, the man has an unwavering loyalty to the Black Dragon that lying didn't fit his character.
But even he— can he truly discern which is which?
As if taken aback, Servius could only respond with a disappointing shake of his head, "I do not know, lady. For what I had seen was the Saintess who had killed the Black Dragon and Lady Sistina. She wore the gown of the Saintess and her strength rival even her well known fame of strength that night. It was as if she gone all out to defeat the black dragon."