The side door opened, and a tall, thin shadow loomed in the doorway. The next moment, the Headmaster stepped into the morning sun, striding purposefully toward them. "Professor," he nodded to Lupin, before turning to Alex. He pulled a tiny square out of his pocket and unshrunk it. It turned out to be a book. He held it out to Alex.
"I gather this is yours," he declared coolly, watching the boy's face with an expressionless dark stare.