InGotham Knights, one of the Case Files sends players to investigate Arkham Asylum. It is rumored to beone of the League of Shadow’ssecret labs where they are committing strange experiments on “volunteers.” Presumably, these experiments are leading to more trouble for Batgirl, Robin, Nightwing, and Red Hood.

Talia Al Ghul is the daughter of Ras Al Ghul and is first seen after her father’s death. While not necessarily an ally, she doesn’t pick any fights with the Knights until further along in the storyline. It is revealed that she has taken over as the new leader of the League of Shadows and has menacing plans to take over Gotham City and destroy those in it. Players must learn of her plans to try and stop them before she gets too powerful, and their investigation takes them to the abandoned Arkham Asylum, where they will encounter puzzles and enemies, as with most missions inGotham Knights. One of the puzzles will require players to solve a frequency sequence that has to do with sonic testing in Arkham’s Tower.

Gotham Knights align the frequencies Red Hood

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Arkham Asylum is now a breeding ground for the League’s various experimentsusing the Lazarus Pitto make stronger assassins and soldiers. At the front of the main building is a research lab that contains hints and clues about Talia’s plans. Players will need to look around Talia’s lab to make progress when arriving. There’s a green containment pod that players will need to scan. In addition, there will be a table that has an investigation puzzle on it where players will need to solve questions using the information items available to them on the table.

How To Align The Frequencies

Whenthe investigation puzzle is complete, it is revealed that Talia has been injecting proclaimed volunteers with serums to give them extra strength, aggressive tendencies, and blind obedience. However, before all of her research can be downloaded, the power short circuits, and players must find a backup generator in the basement before heading to the tower. So prepare to duke it out on the way to the tower with some League Assassins waiting outside.

Inside the tower is a soundamplifier for sonic frequencies. The central console has four sound waves; connected to the console are waveforms with correlating amplifier machines. Players must activate each amplifier in the proper order and match the sound wave for the frequency. The order is found on the central console’s screen, with the first waveform being found to its direct left.

Gotham Knights Align the frequencies

Players looking toward the floor will see different colored wires connecting the waveforms to the amplifier machines. To change the frequency, follow the wire to the amplifier on the right and then interact with it to change the sound wave until it matches the corresponding waveform on the center console. Repeat this step in the right order until they all turn green. The order, using the color of the connecting wires, goes as follows:

Gotham Knightsis available for PS5, PC, and Xbox Series X/S.