Meredith known as Merry Gentry to the human world has suffered a lot in both worlds. There was a time when she used to live in the world of fae because she is the true heir to the throne. She defeated her enemies with her powers and planning and also stood against the enemies for the land of the fae, however after a while she decided to leave that world.
After leaving the world of the fae and the throne which actually belonged to her, Merry came to the world of humans and started working in Los Angeles as a private detective. So she helped the faerie world in the beginning and then she started helping the humans but she only made more enemies in both worlds as a result of these activities.
Laurell K. Hamilton has described Merry as a sentimental lady and we can see that although she has left her world still she tries that no harm comes to the people of her land. Laural Merlington narrates bloodshed in the fae world and this starts a new tension for Merry. Although she is not living with the people of her world it does not mean that she does not care for her people anymore.
She cannot allow anyone to eradicate the fae creatures from the face of the world. Dancing and Crimson Death told about power-hungry people and this displays such category much further. The one who is after the fae creatures also want to get rid of Merry as well and perhaps he started all of this to bring her out on the battleground.