A World Aflame

Description
In the distance, a thin cord of smoke cuts up into clear blue skies. Fire. Calling a few tribesmen, you run closer, the smell of cindered bark and burning pine growing stronger with each footfall. You spy dancing flames, and suddenly find yourselves on the edge of a settlement on fire. Many of the structures are ablaze, but even with the smoke and flames you can see these abodes are marvels of craftsmanship. You are about to direct your men to put out the fires with loose soil, when you see short, shadowed figures running away. Youths. They could become part of your tribe if you give chase now, but that would mean losing these secrets of construction. What is your choice?

Options
"Raw numbers will help us more than building techniques at this time."
 * Chase
 * Effect: Spawns a Tribe unit into the army which the event is triggered on. If it's full spawns next to it.

"Understanding how to build stronger settlements will be vital in the future."
 * Extinguish
 * Effect: Modify City Defense research cost by -25%