I had skipped over this volume when I was reading the last incarnation of Teen Titans, and I shouldn't have. It does fill in a few missing blanks. You'd get along without it, sure. But since it's actually pretty good, and features a goodly amount of well-written Ravager, it's certainly worth a read. I didn't enjoy it quite as much as I had [b:Villains United|353701|Villains United|Gail Simone|http://d.gr-assets.com/books/1308547747s/353701.jpg|343905], but it's a worthy tie in to [b:Final Crisis|5173602|Final Crisis|Grant Morrison|http://d.gr-assets.com/books/1320399931s/5173602.jpg|5240667], and I appreciate that it tied up a few loose ends.