User blog comment:TheCarrotSaysYumYum/Dragons, People and Demons.../@comment-24390912-20140126180942

I'm not sure if this is true but, on the episode when Lucy went back to her mansion and, visited her mother's grave...I thought that the date was the day the dragons disappeared (July 7th). It might just be a hallucination but, it would explain Layla's part in the story other than just being a traumatic event for Lucy. So yeah...