Three days had passed since Moriarty returned. Three full days and nights.
During that time, Moriarty behaved as he always had, but those familiar with him discovered turbulent undercurrents hidden beneath his calm exterior.
Lilith carefully noticed that Moriarty's hands sometimes trembled while he took notes.
Jericho noticed that while Moriarty taught the younger members of the Slytherin Quidditch Team how to remain steady during high-speed dives, he would occasionally stare distractedly at the Black Lake.
Soldaya noticed that Moriarty often circled Hogwarts again and again at night.
It was as though Moriarty was about to leave Hogwarts, imprinting every place in his mind with the deepest, fiercest emotions.
Though only three days and nights had passed, to Lilith and the others, it felt as long as a lifetime.
If they had not known that Moriarty was not such a sentimental person, Lilith and the others would have almost believed that he was going alone to seek out Light and Gamp for a final battle.
Lilith and Hermione reviewed the entire process of their last journey through time, hoping to find the cause of Moriarty's unusual behavior.
A group of Hogwarts' most outstanding students went over it more than thirty times, yet discovered nothing unusual.
Moriarty's strange behavior and his companions' anxiety caught the professors' attention.
Professor Dumbledore summoned the professors to his Headmaster's Office.
"Moriarty must be having a psychological problem," Professor Snape said. "We need to counsel him, or he won't be able to deal with that Light and Gamp."
"You're the best at this, Albus." Professor McGonagall looked at Dumbledore.
He was sitting in his armchair, his hands clasped atop the desk, his knuckles sharply defined.
"Me?" Dumbledore frowned, his pale hair drifting messily. "I'm not sure it will work."
Because Dumbledore thought of the night before