What is the setting of Keturah and Lord Death?

The setting of Keturah and Death is a post-apocalyptic world where nature has taken over and the few remaining humans live in isolated communities. The world is filled with danger and mystery, and the characters must navigate this harsh environment to find their place in it. The story takes place in the ruins of a once-great civilization, and the characters must learn to adapt to the new world if they want to survive.