Almost everyone I spoke to who had read this series said that the second book was not as good as the first. Possibly as a result of this, my expectations were not as high, but I have to disagree. Though in structure, it's similar, and you could even argue that this volume is a rehash of the first book, I felt that this book was done better than the first one.
In the beginning of this novel, the characters from the first book are arriving at their destination: the lost civilization, the eastern continent, settled by a group of religious pilgrims centuries before. The priest Damien Vryce finds a culture and nation that realizes his dearest dreams of a civilization ruled by his religion, where the faith in his God holds dominance in the hearts and minds of its people. But it is soon revealed that all is not as it seems in this new land, and the companions find themselves on a trek to the south to discover the source of the evil that has insinuated itself into the civilization.
In that regard, it is a rehash. Much of the book is spent traveling again, and this is the part I found a bit tedious. This book could have been about 100 pages shorter if the unnecessary overland journey section were shortened. But I felt that the reasons behind the actions certain characters take were a bit more well established than in the first volume of the trilogy. The characters also change and grow along the way, and the characterization is better in this volume than the previous. In the course of this novel, we learn who the true enemy is, and this sets up the plot of the third novel.
One of the problems I had with this book was the title. The author took pains to define what True Night meant in the first book, and it doesn't really come into play for this one. The plot or resolution doesn't hinge on the fall of Erna's True Night, nor does anything happen on such an event. You could take the figurative stance that True Night in this case doesn't mean a literal True Night, but a state of hopelessness or deception. But it would be a weak stance. Also the coldfire doesn't really enter into it much, either. but they're catchy phrases, so they make decent titles.
Despite the lengthy travel spanning the middle section of the novel, it moves along at a pretty good pace. The tension builds up well, and there are some gripping moments near the end where you really can't put the book down. So don't be put off by people saying this is a boring middle-novel where nothing really happens. This is where the real foundation of the climax to the trilogy is being set down.