Superman (2006) #667
Part 1 of the action-packed 2-part finale of 'Camelot Falls,' by Kurt Busiek, Carlos Pacheco & Jesus Merino! With the whole world watching, Superman's on the hunt for Arion. But Subjekt-17 stands in his path - and he's out for blood! It's the first of two no-holds-barred slamdowns that will shake Superman's world to its core, as the biggest Superman epic in years hits its explosive climax!