I think Evie Dunmore gets better with each book. 
The historical aspect intertwined with a familiar love story (hades & Persephone) makes for a pleasing read. 

Updated review:

Dunmore is my top tier historical romance writer because she does not take the historical part lightly. 

The research that went into this book is refreshing. It grounds these characters and established an equal understanding. 

I adored the transformation Hattie goes through. The way she goes from a naive and righteous girl looking for approval to an empathetic, curious and self assured woman.