Odd still struggles with the events of the last book. He hasn't gone back to work, he's still living in Stormy's apartment, and his friends are concerned about him. But when one of those friends is kidnapped and his father killed, Odd knows he has to do something. 
 The tone of this book is much different than Odd Thomas; while the first book had similarities to, for example, the Jack Ryan books in its high-pitched stakes and adventure, Forever Odd is much quieter, more introspective, with a smaller cast of characters. Odd does much more alone in this book, without the help from the police he got in the first one. Entire chapters might pass without a word being spoken, as Odd spends so much of the book alone and isn't one to talk to himself. 
 Koontz again writes Odd as older than his years, which makes even more sense considering the events of the last book piled onto his childhood, which we learned about in the last book. There's an interesting balance of distance and immediacy, as Odd mentions his plans to write this adventure down as he did the last one--implying that he's looking back on these events after the fact--even as he's constantly in danger. 
 There are implications in this book that the paranormal in the world goes further than Odd's ability to see ghosts, and while that can be interesting, I sort of like that the paranormal is simple and limited, rather than sprawling. We shall see whether Koontz expands it in later books or keeps the focus on Odd and his life.