In the blink of an eye, the first week after the Christmas holidays had already passed.
Since Dumbledore had not sent any message to Lee Valerius all week, their agreed-upon special training had yet to begin.
Dumbledore later explained the reason to Lee Valerius: Grindelwald had raised numerous new demands, forcing Dumbledore to spend time making preparations for him... Consequently, Lee Valerius's special training had to be postponed.
Chapter 248