Gotham is a weird place at the moment, as heroes like Batwing are going up against villains like Gentleman Ghost. Why? Who knows! But when Batman shows up with a Nth Metal batarang, he pretty much goes "Man, this place is weird!" too! But beneath them, Doctor Phosphorus is out, and up to something below Gotham.
Bruce returns to the cave to find Alfred a little uncomfortable, turns out they have a guest, and Alfred doesn't even have to say a name, just how the guest makes him feel, and Bruce knows who it is... Jim Corrigan, host of the Spectre.
Corrigan waits in the library, pleased to see Bruce, and goes on to tell them that there's something wrong at Arkham Asylum, in a spiritual sense. Bruce can't really be bothered with Arkham at the moment, as Falcone is keeping him occupied, but Corrigan wasn't looking for help, just giving him a heads up. Nevertheless, Bruce decides to send one of his allies into Arkham with Corrigan.
At Arkham, some poor sap blabbering about a dream he had, where he was walking through a maze with tons of handprints on the walls, is being lead into the depths of the asylum by his doctor... Eventually, the walls start to show a bunch of handprints on them, and things start getting creepy (along with a Maxie Zeus cameo). Turns out this doctor has a boss at the Asylum who isn't exactly employed there... Instead, she's preforming some sort of ritual summoning deep beneath the Asylum in order to "bring the man back." Who is this I'm talking about? Joker's Daughter... and congrats for her first mentioning here at Gotham Spoilers that isn't followed by sarcasm!
Elsewhere in Gotham, Luke is hanging out with a friend while an explosion, attached to the gangway, goes off across town. It doesn't take long for Luke to get a call from Batman, but instead of heading towards the explosion, he's told to head to Arkham to meet Jim Corrigan. Batwing eventually does meet up with Corrigan, who casts a protection spell on Luke. The two prepare to brave the asylum, with Luke's only advice from Batman being that if Jim's eyes and mouth begin to pour smoke, run away.
But what about the explosion? Well, that's for Batman to deal with. He rushes towards the scene, looking to put out the fire (so to speak) before Penguin has time to retaliate, but seems like it's all a big setup. Remember Phosphorus? Well someone is leading him along the sewers, telling him it's go time, and as soon as Bruce turns a corner in the bat mobile, an 18 wheeler pulls out in front of him, and is caught in manhole explosion set off by Phosphorus.