The city of Yennetilbi periodically becomes swallowed by an enormous wave for a short period of time, loosely coinciding with a lunar eclipse. The citizens celebrate this occasion by painting the exterior of the spherical city with invisible paint that activates upon contact with salt water. So when swallowed by the sea, the city of Yennetilbi glows with color, as the moon's glow becomes swallowed by the Earth. From a distance, it is as if, after months of toil, the moon escapes to Earth for a momentary respite in the city of Yennetilbi.