3.5 stars 
 Despite loving Kai's character, Perfect Ruin seemed to drag on and on and on. Kind of a let down for me. I am glad to have read it though for it is a part the overlapping storylines of both the Unyielding and Tear Asunder series. And for each installment read, you get to see the whole picture and how both series interact with one another. 
 ***ARC/review copy kindly provided by author/publisher via NetGalley for an honest review***