Instead of bringing education to his fellow kobolds, Thuk discovers the benefits of mining. Explicit.
Thuk was a rare thing: a kobold with an education. He'd been part of a scavenging clan when he was younger, and then one day it just wasn't enough for him any more. He'd spent a year away from home, learning all that he could, and now he was trying to bring that knowledge back to his fellow kobolds. It was about as easy as breaking through a dungeon wall with his head.
The latest kobold settlement Thuk had tracked down was a mine, hidden deep down behind crevasses only the wiry little lizards could slip through and worming its way throughout the depths of the mountain. They mined the ores and gems that hid in the stone, and traded them with the creatures that lived higher up for food and small trinkets.
Thuk slid down to sit beside his bag and pulled out a scuffed and scraped book--a human-made one, for teaching basic math. If he could get these kobolds to think about their mining in terms of math, they could trade more wisely, improve their quality of life, and live more easily.