A Great Inferno

Episode 19 of Nightwing & Batgirl.
== Plot ==
In outer space, in Ma'alefa'ak's ship, he talked to Fernus and Human Flame. 
"Fernus and Human Flame, I want the two of you to search for Martian Manhunter. Burn his whole place down if you have to! Make sure you can bring him to me.", he commanded them.
"We will. We will unleash our burning wrath on the Martian!", Fernus replied.
"We will bring him to you. We promise.", Human Flame said.
"Good.", Ma'alefa'ak told them.
The next day, Nightwing, Batgirl, and Stargirl fought Scarecrow and his henchmen when they tried to ruin an opera in Gotham Theater. Then later, policemen arrested the villains after the heroes taken them down. Stargirl said goodbye to the two.
The scene moves to Fernus and Human Flame landing down on Detroit. 
They attacked policemen and asked, "Where is J'onn J'onzz?". 
"We don't know, and even if we know, we won't tell you", a policeman answered.
The two villains were enraged and created some small fiery winds. They burned buildings and cars. The Justice League Detroit, composed of Martian Manhunter, Elongated Man, Vixen, Zatanna, Gypsy, Commander Steel, and Vibe, saw the trouble from their supercomputer's monitors. 
"No way! They're burning down the whole city!", Martian Manhunter said.
"Let's call Nightwing and Batgirl quick!", Elongated Man said, as he contacted them.
Meanwhile, Nightwing and Batgirl's supercomputer detected the trouble. They immediately answered the call.
"Nightwing, Batgirl! We need your help!", Elongated Man told them.
"We know. We'll get there right away!", Batgirl replied.
They rode the R-Cycle to get there quick. They, along with the Justice League Detroit all reached the scene at the same time. 
"Do these guys look familiar to you?", Nightwing asked Martian.
"I know them very well.", Martian answered, "Human Flame is a villain I once faced and was able to defeat. While Fernus is an alternate psyche I developed while unlocking my own genetic memories."
"I guess this is where it gets complicated.", Nightwing replied.
"Eons ago, Mars was first inhabited by an ancient alien race called the Burning.", Martian said.
"Oh, no. Here goes the history lessons!", Vibe said.
"These alien species thrived through fire and violence. Soon, the Guardians of the Universe saw the potential threat they hold to other races, so they decided to neutralize them. They experimented on their entire race, soon developing and installing in them the fear of fire, and splitting them into two races: the Green and White Martians. The White Martians retained the violent nature of their predecessors while the Green Martians, our race, grew to become seekers of peace, justice, and wisdom.", Martian Manhunter narrated.
"That, was mindblowing.", Vibe said.
"So, now that history lesson's done, it's time we teach these bad boys a lesson as well.", Vixen told them.
Some of the heroes now went at them. They had one hell of a fight. Zatanna holds her own against Fernus. And Elongated Man tangles Human Flame and his costume got burned. He fell down unconscious. And Martian Manhunter's weakness was fire, and he was unable to fight. Nightwing, Batgirl, and the other members of Justice League Detroit protected him. They fought the two fiery villains on a standstill. Nightwing, Batgirl, Vixen, and Zatanna took on Human Flame. While Gypsy, Commander Steel, and Vibe took on Fernus. Gypsy, being a master illusionist, used her skills to avoid Fernus and send his fireballs back to him. Steel used his combat skills to knock down Fernus. While Vibe used sound waves to take him down. But, they lost their upper hand as Fernus unleashes greater power which sends them away flying. Nightwing and Batgirl combated Human Flame, but they were defeated. Vixen, using the speed of a jaguar, kicked Human Flame several times, then she used the flight of an eagle. Human Flame used his flames to follow her trail, and Zatanna knocked him out from behind. Zatanna and Human Flame's powers were equal, but later, Zatanna was outpowered and was defeated. Now, Fernus and Human Flame are about to get Martian Manhunter to their ship, but Batgirl threw a Batarang at Fernus. Human Flame helped Fernus get to the ship, but Batgirl made it there. Then, Martian Manhunter rises up and battles Human Flame and Fernus. He shapeshifted into a large dragon and squeezed them. But, Fernus attacked Batgirl and was able to knock her down unconscious. But, Martian Manhunter saved her and battled Fernus and Human Flame. He defeated Human Flame and knocked him down unconscious. Then, he faced off with Fernus. 
"What do you want from me?", Martian asked.
"We want you, to come with us. Do so, and we'll leave this precious city of yours.", Fernus answered.
"I'll never do that!", Martian Manhunter replied.
"You haven't got a choice.", Fernus told him, as he attacked him, and he was weakened. "You see, you can struggle all you want. But you will never be able to defeat me. I am a part of you. I reside in your thoughts, emotions, and your senses. You will never be able to get rid of me."
Martian Manhunter struggled, and was later able to stand up.
"If you're a part of me, then I guess it's time to bring you back where you belong!", Martian Manhunter said, as he went close to him, and engulfed himself in his flames. 
"Wait! What are you doing? Stop! Let me go! I don't want to be trapped inside your mind again!", Fernus pleaded.
"You haven't got a choice!", Martian Manhunter replied, as he groaned in pain, struggling to absorb Fernus back into his psyche.
Later, he ultimately did, and Fernus now disappeared. He was back inside Martian Manhunter's mind. He was down on the ground. Later, after recovering, he took out the White Martian pilot of the ship, knocked him unconscious, and proceeded to land the ship back down to Detroit. He went down, carrying Batgirl in his arms.
"J'onn, are you alright?", Zatanna asked.
"Yes, I am. Go get Batgirl.", Martian replied.
Now, Nightwing did so. He immediately went to him carried Batgirl in his arms. Later, Batgirl regains consciousness, and Nightwing immediately asked her if she's okay.
"I'm fine. Thank you.", Batgirl told him as she woke up.
"So, problem's over", Vibe said.
"Not yet. Commander Steel, contact S.T.A.R. Labs immediately.", Martian Manhunter said. "This ship must be retrieved. Also, Human Flame and the White Martian pilot needs to be taken to their custody."
"Right away, J'onn.", Steel replied. 
"This was one hell of a day!", Elongated Man said.
"Nothing made sense, but at least it's over.", Vixen replied.
The episodes ends with them watching the fires across the city being put out.
== Characters: ==
=== Heroes: ===
* Dick Grayson/Nightwing
* Barbara Gordon/Batgirl
* Courtney Whitmore/Stargirl-a teenage hero equipped with a staff which can emit energy and allows her to fly.
* J'onn J'onzz/Martian Manhunter-a founding member of Justice League and one of the few survivors of Mars; takes the alter-ego of a cop named John Jones.
=== Justice League Detroit: ===
a group of superheroes who are assigned specially for Detroit.
* Ralph Dibny/Elongated Man-has elasticity powers.
* M'ari McCabe/Vixen-has a talisman which allows her to assume the abilities of any animals she wishes to.
* Zatanna Zatarra-able to cast magical spells by speaking backwards.
* Cynthia Reynolds/Gypsy-has invisibility powers and can phase through walls.
* John Henry Irons/Steel-an ally of Superman; wields a metal suit which enhances his strength, durability, and flight and uses a weapon.
* Cisco Ramon/Vibe-has the ability to create groundwaves by dancing.
==== Other: ====
Police
=== Villains: ===
* Scarecrow-a villain who utilizes fear toxins for his crime.
* Ma'alefa'ak-evil brother of Martian Manhunter; led the White Martians in his revenge against his brother.
* Fernus-a part of J'onn J'onzz's psyche that was split from him.
* Michael Miller/Human Flame-a criminal with a containment suit which he could use to manipulate fire.
* White Martian-species of white aliens from Mars; wiped out most of the Green Martian race.