Honath and his fellow arch-doubters did not believe in the Giants, and for this they were cast into Hell. And when survival depended upon unwavering faith in their beliefs, they saw that there were Giants, after all.... The Thing in the Attic To Pay the Piper One-Shot
A small group of intellectuals from a primitive culture of modified monkey-like humans are banished from the treetops for heresy. In their exile on the ground they have to adapt to vastly different circumstances, fight monsters resembling dinosaurs, and finally happen upon the godly giants, whose existence they had questioned.