"It IS Sir!" Sam replied excitedly, pulling the book back out of her bag and holding it up so he could see the title. It was the Common Room copy of the one he'd been reading when she'd recently gone to visit his office. She'd be finding it to be an interesting read indeed.

And as for getting tired? Nah, Sam was full of energy today, and quite happy leaning against this rock here.

As for the topic of the lesson, Sam looked around the room curiously. Was Hirsch keeping a real live troll in here somewhere? The rocks seemed like their sort of territory, but was the ceiling high enough for a troll? It was often hard to just scale from textbooks.

"They belong to the Genus Troglodytarum," she replied, hoping she'd got the pronounciation correct. "And mountain trolls often ride graphorns...which the graphorns don't like very much, because, as Skylar said, the mountain trolls are the heaviest."