Silence: Little Mermaid Retold

This story started out better than “Revel”, but the enthusiasm died off. I did not like Erik's internal pick-me attitude of “she's so beautiful, I love her, but how could she ever love me?” A world with magic needs to explain the rules, and this world does not explain what happens to a siren/mermaid (these are not the same creatures but this story used them interchangeably) when the creature takes over. How do they kill their victims, if that is what really happened? I assume Margareta's father told her that just to slut shame her and keep her away from men, but if it is true, it was not explained. Also, the main character's bird brothers were the same as the ones from “Revel”?? But they were killed in “Revel” by Vasco?? Are these the same universe? It was not explained enough and the excitement and plot hit a sharp decline right around the middle. The story just wrapped up.

Also, was Erik bewitched or not???