The Protean Chamber

Elixir Forest had never been topside. She had never left the safety of her aquatic home, nor had she ever been expected to by the colony elders. Elixir had longed all of her life to know what the earth's surface above was like. Did humanity survive the previous chaotic centuries?
When by chance a visit to the surface is granted to Elixir, she finds far more than she could have ever imagined.