Sarah, the longest-reigning leader their pod had ever had, barely celebrated her 9th birthday before an accidental nick led to gangrene led to death. Their next leader, Evan, made it to the ripe old age of 10. He'd learned firemaking (not keeping it alive), some sewing, and basic hunting (several squirrels). Rumors spread that a girl in a nearby valley had lived to 11 (by one day, before dying of malaria). Which started everyone dreaming: What if you could live all the way to 12? Even 13? Imagine what discovery and wisdom a child could enjoy with that luxurious lifespan.