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| Publisher |
DC |
| Writer |
Dan Abnett |
| Artist |
Eduardo Francisco |
| Artist |
Angel Hernandez |
| Published | May 2015 |
Batman and his team battle Nightmare Batman. Later, the Monitor arrives on the Gaslight world to investigate the Earth Engine. But in doing so, he accidentally unleashes a wave of madness that claims him too. And a mystery villain is revealed.
