First look at the beautiful cover.  I really enjoyed The Darkness Within Us even though I did not read The Shadows Between Us or normally read YA.  This may be a bit beyond YA into newer adult if you want a label; however, while there is graphic violence, there is technically no "relations" on page.  This story was fun, snarky, sassy, female centered, revenge driven, emotional, relatable, and suspenseful while at the same time keeping me on my toes.  I had a hard time putting it down to go to sleep.  I do think at times the banter between Eryx and Chrysantha was juvenile when it should have been more serious and the ending resolution was more simple than I think it should have been. However, it was an awesome story that kept me engaged and excited to read it from the first to the last page.  Story well done.  I may consider going back to the first in the series, although this book kinda spoils it for me though.