Let's return to Hector's side of things.
Naturally, Hector had no intention of attending Lockhart's Defense Against the Dark Arts class. He considered it a monumental waste of time to play along with a fraud whose fame vastly outweighed his actual competence. Besides, Hector had secured permission from Dumbledore himself over the summer holidays, which meant he felt not a shred of psychological burden about skipping Lockhart's class.
So, instead of heading down to the fourth floor, Hector went straight up to the eighth. Of course, he had no intention of wasting this precious time taking a nap (though he had certainly done plenty of that back in his university days). Instead, he could devote some effort to studying advanced magic—he hadn't touched Tom Riddle's diary once since acquiring it.
Chapter 116