A young boy goes missing.

Taken, in the middle of the night.

No clues. Nothing except the remnants of a black cloud, like the one coughed up from inside the Doorway of Darkness.

A black cloud that takes Axiom-man to a world not his own.

A dead world, where a gray and brown sky shrouds an entire city in a miasma of decay.

The streets are empty. The young boy is nowhere to be found.

Those he does find...are dead.

And walking.