The Dark Half

Nathan and Damian are identical twins, the only differecnce is that Nathen has blue eyes. When they where 2 months old when Nathan was kidnapped by one of the League of Assassins enemys. When he was 6 he escaped and ended up in Gothom and was found by Catwoman AKA Selina Kyle, who kept him hidden from the world. What happens when Damian and Nathan meet after so many years.