Ernie nodded and went to prepare a second cup for tea. Zacharias had been one of the less openly affectionate Hufflepuffs and Ernie had never pushed him, just tried to be friendly and open and allow him to come along at his own pace. He was definitely not the type to be greeted with a hug.
"I was for a bit, doing some research, but I actually found exactly what I was looking for less than half an hour ago. It's taken me a week or so to trace mentions of this spell, now all I have to do is see how much it's been tried and how. What do you take in your tea?"