Lord of the Abyss is Nalini Singh’s contribution to the Royal House of Shadows series. This fourth and final book focuses on Micah, the youngest child of King Alfric and Queen Olivina.I did not read the first three books in the series, but I did not feel as if I had missed anything. The background of the series is recapped well.Micah was taken from his family at a young age and was ensorcelled by the blood sorcerer. Micah is now an imposing figure: He is the Lord of the Abyss. He is a large man, covered in a black armor from head to toe.The blood sorcerer’s daughter arrives at Micah’s castle on a mission to help him remember who he is and return him to Elden. She needs to do this before the blood sorcerer’s magic becomes permanent. As Liliana enters Micah’s life, he undergoes some changes.What an engaging read. I could not put this book down. Nalini Singh weaves a captivating tale that had me rooting for our hero and heroine. The writing is beautiful and descriptive: the imagery of the Abyss captured the horror and despair of that place. The story was well paced and there were some scary magical creatures (giant spiders!). I did feel that the ending was a little bit rushed.As for Micah and Liliana, I loved how their relationship progressed. Liliana began to enthrall him with stories about his past. Micah was intrigued by Liliana’s presence which began to tame the monster within him. Their moments together were tender, loving, and sensual.I’ve made it my mission to catch up on all of Nalini Singh’s wonderful books. I can’t believe that it has taken me so long to discover this wonderful author.