The book has 101 issues . An issue used to be published Bi-monthly . Vertigo published ,The book named Countdown to Final Crisis . Bill Mantlowrote the book Countdown to Final Crisis . This book was published in (vol. 1) June 1952 – February 1966 . Countdown to Final Crisis was a mini-series . The main characters of this book are Karate Kid,Duela Dent,Superman-Prime,Pied Piper,Ray Palmer,Holly Robinson,Harley Quinn,Trickster,Kyle Rayner,Donna Troy,Mary Marvel,Forager,Triplicate Girl,Monarch,Jason Todd,Jimmy Olsen . This book is of superhero,alternate history,supernatural genre
Countdown to Final Crisis had more than 93 issues