The Little Mermaid meets African deities and Trans-Atlantic slavery

This was a little ambitious with all its moving parts, but the premise wasn’t bad. Orisas (differentiated from orishas?) made the narrative a bit distracting for me. 
 
Personally, I would’ve liked the book to focus either on the involvement of the orisas or Simi’s amnesia. Simi’s fractured memory of her previous life before being made into a mermaid was the most promising part to me. 

Kola could’ve been a better companion. But his character was bland as was Simi.

Overall, this was too slow-moving for me, so it couldn't keep my interest.