A Vow So Bold and Deadly is the third book of the curse breaker series and the viewpoint is often changed between the four main characters but the main protagonist of the book is Grey who was currently taking sanctuary at syhl shallow and preparing for war.
Neither Grey nor Rhen truly wanted to go to war and kill each other but there was no other choice.
Lilith the enchantress was back and as usual, she was making Rhen suffer for the deeds that his father did and one day when Rhen agrees to the peace she gets angry and kill almost everyone in the castle so Harper had to run and she decides to ask for help from syhl shallow and Grey.
They are wary at first but Grey agrees to help even though the soldiers still think that she was leading them into a trap but they arrive at the castle where Rhen wields to Grey and they finally kill Lilith but it also results in the death of Lisak the scraver.
This book was fun to read and some of the character development from the first book was immense but I did like the character of Lisak so that was kind of sad.
I also liked the ending of the book which was quite light after the action-filled book and well placed but then again there were some questions that I had that were left unanswered and mysterious.