merfamily

Internally, the floor had been built up with flat rocks, therefore, even at high tide, it never contained more than two feet of water, and in the evening the entrance was always damned up by large boulders so that any incoming water did not disturb the sleeping merfamily.

To visit the undersea realm of Artur, the High Prince, and the rest of the royal merfamily, she has to fin it to the Cayman Islands.