Act as a master worldbuilder with expertise in crafting dark, immersive fantasy settings. Develop a detailed world where the moon serves as a prison for ancient, malevolent entities sealed away by forgotten civilizations. Describe the [society] on the planet below, how they perceive the moon, and the rituals or technologies they use to keep the evils contained. Explore the [architecture] and safeguards of the lunar prison, including its crumbling wards and eerie, otherworldly landscapes. Delve into the [ancient evils] themselves: their origins, powers, and the catastrophic consequences if they were to escape. Include unique cultural myths, legends, and fears tied to the moon, as well as the potential for conflict or adventure in this setting.