Child's Play

5 sectors, 4 heirs, 1 goal. Which sector will remain to claim all the land in Scorch Valley?

Five sectors surround Scorch Valley. Each is looking to expand, and the valley looks like the perfect spot: its nearby, has fertile soil, and is in a prime area to trade and monitor all the other sectors. The rulers of four of the five sectors decide to send their heirs and some citizens into the valley to see who emerges as the victor.