The Undead Guardian
"Now that he's turned into a zombie, he still does the same thing every day like clockwork, walking from the first floor of Ashford Hall up to the fourth, then back down again. At least three rounds a day, morning, noon, and night. And he feels...different from the other zombies."
"Different?"
Elora was intrigued. "How so?"
The student racked his brain. "I can't really explain it. It's just a feel