[There wasn't much she could know from the public reports anyway, but it gives her the time frame.]

In 1999, there was an accident on the island that twisted the Shadows' world and ours. We called it the "Dark Hour." Every night at midnight, those of us with Persona potential entered an extra hour and encountered Shadows. Sometimes normal people would also be drawn in, and get attacked. Those were the victims of Apathy Syndrome.