Underworld

Beneath Blimnor extend complex and largely unexplored networks of caverns that can extend for thousands of miles. They are rife with strange hazards, monsters, and even generations of outcasts who've retreated to the hellish place to live savage lives away from the judgement of society. Some people theorize that these tunnels may indeed run beneath the ocean floor, and that one could travel between continents by foot, but no expedition has yet succeeded.