The carriage stopped at a white building, and Nathan helped Crystal down.

In front of the building, there was a fountain with a statue of a mermaid. She was holding a shell and spraying pearls.

The building's door was a crystal curtain, and the ceiling had been designed to reflect the sun's light into the building. Where am I? - Crystal wondered.

Nathan nodded to a servant, and she pulled open the crystal curtain to reveal a large, indoor, natural hot spring. Mermaids ...