**The final arc!** Captain Midnight is on the hunt in Arcadia, but vigilante hero X doesn't tolerate trespassers in his city. Especially when mayhem tends to follow close behind. But when the high-flying hero finds the Archon's archnemesis, the Mark, he learns the height of peril presented by the world's most dangerous man. * Continuing the _X_ and _Captain Midnight_ Marked for Death crossover in _X_ #21“#22 and _Captain Midnight_ #21“#24!