"Fairy's... Original Sin?"
Everyone's breathing caught at once.
"What does that mean?" Da Vinci's expression turned serious as she pressed Riezel. "Why do the fairies bear Original Sin?"
Riezel did not answer immediately. Instead, he looked over everyone present.
Among them, some looked confused, some blank, some grave, while others unconsciously revealed traces of unease and tension in their eyes.
Artoria was among the latter.
Meeting Riezel's gaze, she vaguely sensed that she was about to learn something extremely important.
After all, from the day they first met, this man had always displayed an inexplicable air of knowing everything.
From then on, Artoria had known that this man must be aware of many things.
And now, it seemed he had finally decided to reveal Britain's greatest secret.
That was indeed the case.
Riezel knew that, at this point in time, neither Artoria nor the Chaldea group had yet uncovered this Lostbelt's deepest secret.
A Lostbelt was a world that had diverged from Pan-Human History, a "futureless" history pruned away during the course of human history's development.
So when had this Britain Lostbelt diverged from Pan-Human History, developed differently from it, and ultimately become a Lostbelt fated to be pruned?
Da Vinci had perhaps pondered that question for a long time, but even a genius like her had yet to find the answer.
Since that was the case...
"There is no need to keep this hidden any longer."
Riezel decided to reveal this Lostbelt's secret to Artoria and Chaldea here and now, before going to war with Morgan in full.
He turned to Da Vinci.
"Chaldea should have known for a long time that prehistoric civilizations once existed in Earth's history, right?"
Though confused by Riezel answering a question with another question, Da Vinci still answered honestly.
"Yes. Not just Chaldea—many