Nick Simmonswrote the book Countdown to Final Crisis . This book was published in September 2004 – August 2005 . It used to be published Monthly . The book namedCountdown to Final Crisis was published by SteelDragon Press (first series) . Jack Horner,Alexander Luthor Jr.,Ivan "Kremlin" Tereshkov,George "Digger" Harkness,Pied Piper,Kasumi, Jack Frost,Captain Marvel,Superman (Kal-El),Cerebus,Coldcast,Arthur Curry,Anti-Monitor,Eclipso,Dawn Granger,Naif al-Sheikh,See Charactersare the main characters of the book . It falls in action/adventure,superhero,martial arts category . The no. of issues of the book is 7 . It is a Anthology
Countdown to Final Crisis had more than 17 issues