It had that eerie, solemn fear, as if the narrator only know about the kingdom under the sea because he/she was once apart of it, and they, being immortal and wiser than the others, escaped as it slowly decayed and corrupted itself. I liked this poem a lot.
That was really good and I enjoyed reading it. The words you used really painted a picture of the sinister place in my mind Also thank you for the costume idea!