A few minutes ago, Bat Cat set out from his Batcave intending to deal with Shiller, and predictably ran into Bane and his group of mad cats that had been let loose from the Insane Cat Hospital.
Bat Cat had always thought Bane Cat was dependent on the liquid in the tubes, hence the prison designed for him was equipped with overdose feeding apparatus that would turn off the flow of liquid periodically, forcing Bane into prolonged withdrawal.
What he hadn't considered was that Bane had already overcome this dependency and no longer had severe withdrawal responses.
So when Bat Cat, according to the previous plan, targeted the tube on Bane Cat's back and caused a leak, he was ambushed by Bane pretending to be weak, causing him to prematurely deploy the Hovering Aircraft and weapons intended to counter Shiller.
In his mind, Bat Cat weighted whether to deal with Shiller first or with Bane and the mad cats, finally choosing the latter, because the destruction that would ensue if these insane cats were to invade the city was far greater than Shiller's. So he changed his route to the Insane Cat Hospital and pursued Bane and his team to this location.
What he didn't expect was to run into Clark halfway, who directly damaged his Floating Saucer, and the cat was dragged here.
Though he was genuinely worried about the situation in the Insane Cat Hospital, the mad cats had already been led out by Bane, leaving behind an empty Insane Cat Hospital that should not cause much trouble. So, Bat Cat decided to take care of this group of cats first - Shiller would have to wait.
What he hadn't expected was that after investigating the condition inside the city and learning about Bat Cat's whereabouts, Shiller had drawn up a multipronged plan.
Firstly, he won Bat Cat's trust and then made a seemingly harmless suggestion - to improve the patrol route for the surveillance robots?
The patrol route Shiller provided was indeed much better than the previous one, covering almost every blind spot, except for a few left out intentionally.
If he left surveillance blind spots randomly, Bat Cat would surely notice, therefore, the so-called blind spots Shiller left were not exactly blind spots, but were chosen from two simultaneous targets that needed surveillance, preferring the lesser of two evils. For instance, first surveilling control points and areas with a wide view, and putting the sewer entrances aside for later.
When Shiller arrived in Gotham City, he knew Batman would definitely come looking for him, and so he set up a chain of enticements for Batman to explore areas within his scheme that he didn't have time to visit himself, like the bank where the murder occurred.
Using the same surveillance blind spots, Shiller committed a murder, killing the bank's Cat Manager and timing the dumping of the body so that it would be left on the bank's doorstep. With Gray mist around, none of these maneuvers were too difficult.
Seeing the body of the Cat Manager, Shiller knew very well that Batman, with his detective's heart, wouldn't ignore a murder case. He had to come investigate.
Batman is the king of the night; he only moves around at night till early morning. Therefore, the surveillance breaches that Shiller set up just happened to be at his peak activity period. In this way, Batman, through the surveillance gaps set by Shiller, has been led to the bank and successfully sneaked inside.
Meanwhile, Shiller did not linger at Insane Cat Hospital. This place was just the Bat Cat's prison for these insane cats and there was not much to investigate. Instead, he desired to investigate the mansion where Bat Cat once resided.
Without needing confirmation, Shiller was very clear, there would indeed be a Wayne Manor in Gotham City. Just like Crime Alley, this is a landmark building of Gotham. No matter which world it appears in, there must be such a place. It is a part of Batman's origin tale, an enduring feature of DC comics.
Shiller transformed into a gray mist and began a large-scale search. Though every building had been altered by Bat Cat into a steel cage, with Bat Cat no longer residing in the mansion but either in Batman Cat Building or Batcave, Shiller still managed to find a distinctive building in what was once a posh district.
This building was also fashioned into metal, but unlike the other stacked or apartment-style structures, it stood alone as a villa.
Upon entering the villa, it still had strict surveillance equipment, even more than what was outside, double or triple. However, Bat Cat had been lured away by Shiller, and the group of released mad cats would occupy him for a while. Even if the surveillance was broken, he wouldn't make it here quickly.
Shiller had accounted for all the time differences, so while Bat Cat was busy fighting with Bane's mad cats, Shiller destroyed all the surveillance equipment inside the mansion.
Just as he began his exploration, he found out that all the items in the mansion had been cleared out, leaving no furniture behind. This was beyond Shiller's expectation, who believed that despite Bat Cat's paranoia, he would not have done this to his childhood home.
The reason Shiller came here was actually to look for the traces of another person, Butler Alfred.
Through his analysis of Bat Cat's personality, Shiller determined that his growing isolation and increasing obsession with control was because no one was guiding his development. This posed a question - where did Butler Alfred go?