Wizardry in the Sea

Episode 56 of Nightwing & Batgirl.
== Plot ==
In Black Manta's hideout, he is seen summoning Merdo the Wizard. 
"Merdo the Wizard. I am most impressed by you coming up with the idea of creating a magical bath tub that transported the Batman to Atlantis. I am once again in need of your services today. My instructions are simple. Take down Aquaman, whatever it takes. It may be impossible, but I guarantee you it's worth the try.", Black Manta told him.
"As you wish, master. I'll do whatever it takes to bring him down and take him to you", Merdo the Wizard replied. Now, he vanished from Manta's hideout.
Meanwhile, at Royale Bank in Gotham, Babyface and his henchmen are doing a little robbery. But, Nightwing, Batgirl, and Wildcat are able to come to the scene and spoil their criminal operation. Nightwing and Batgirl took out the thugs while Wildcat took out Babyface, the boss of them. The battle was short, and Babyface and his men are sent to the police after. Now, Wildcat said goodbye to the two. Nightwing and Batgirl now returned to their headquarters to take a rest. They changed clothes Then, they cuddled on the sofa. But after a while, their moment with each other was interrupted when there was a breaking news on the television. There was a large whirlpool found in the middle of Atlantic Ocean, with 4 cruise ships being sucked into it. Nightwing and Batgirl were shocked. But Nightwing was more disappointed because they had to put their costumes back on again. They had no choice so they put them back on again, and went to action. They rode the R-Marine and called Aquaman concerning this. Aquaman said he already sent Atlantean rescue team to search for the people and he gave the two the coordinates. Nightwing and Batgirl immediately went there. After a long rescue operation, Nightwing, Batgirl, Aquaman, and the Atlantean rescue team were able to save the people drowned by the whirlpool and those stuck in the ships. They brought all the rescued people back to land. After that, Aquaman commanded the Atlanteans to go back to their kingdom and stay on patrol for surprise attacks. Aquaman had a conversation with Nightwing and Batgirl.
"You know, there's something suspicious about the sudden emergence of this whirlpool. Seems like another attack directed on me, or our kingdom. I need your help to investigate on this", Aquaman asked Nightwing and Batgirl. The two immediately agreed. 
Now, the two went to the R-Marine and Aquaman swam back to the oceans. Meanwhile, Merdo the Wizard has anticipated the heroes' return to the whirlpool's location, so he decided to show up there this time. He also had magical sea creatures as company. When they reached near the whirlpool, Nightwing and Batgirl put the R-Marine afloat, then wore their underwater battle suits and dived and swam underwater. Now, the three heroes went to the whirlpool and they're surprised to see Merdo, and they got surrounded with his magic sea creature minions.
"You!", Aquaman exclaimed, "I knew this was one of your tricks!"
"Who is he?", Nightwing asked.
"You're very clever, Aquaman. Actually this was my second tricks, and a lot more to come", Merdo said, with a sinister smile. "It is I, Merdo the Wizard, master of sea wizardry. Also the one responsible for the magical appearance of a bath tub in Batman's cave, which transported him to Atlantis.", he added.
The three heroes were enraged, but suddenly, they were attacked by the magical sea creatures. The heroes first handled those. Nightwing and Batgirl used their gadgets, while Aquaman used his trident and his right hook hand. Then after a little battle, they were able to destroy all those. Merdo was impressed. However, he has more tricks up his sleeve. He used the whirlpool on them. They were sucked by it. But before they got stuck in the whirlpool, Aquaman was able to call a large whale to come save them. The whale was large and was able to cross through the large whirlpool and saved the heroes. Once again, Merdo was impressed. 
"Impressive. But you thought you are the only one who has sea friends?", Merdo challenged Aquaman. 
"Why? You still got something up your sleeves?", Aquaman also challenged.
"Well, I have", Merdo replied, as he called on a large octopus. 
Aquaman was shocked. The octopus was familiar to him. It was his ally, Topo. 
"Topo? No! What did you do to him, Merdo?!", Aquaman asked, enraged.
"It's no longer the octopus you've come to know and love. It's turned its back against you", Merdo answered. 
The octopus attacked the three heroes. They had no choice but to battle it. The octopus gave them a hard fight. But later, they decided to start going after Merdo, but he pushed them back with blasts from his magic wand. Now, Aquaman summoned his whale ally to battle the magic-controlled Topo the octopus. He also summoned some fish to distract Merdo. The fish were relentless and kept attacking Merdo, until he lost grip of his wand. The heroes immediately swam to retrieve the wand, only to find out that Merdo's magic doesn't come from his wand alone, but also from his hands, as he shot a magic blast at them. Nightwing and Batgirl threw oxygen bombs on his face to cover his vision, then they retrieved his magic wand. Now, Nightwing hoped against hope and just shot several magic rays at Topo, but it only made it more aggressive. Batgirl asked Nightwing to give it a try, and he gave the wand to her, and it worked. The octopus was snapped out of control. Aquaman knew when it gave him a tight squeeze. Now, he summoned the squid to attack Merdo, and Merdo swam away. He tried shooting magic blasts at it but it did not affect Topo. Later, Topo was able to give him a tight squeeze and tossed him away. "No!", Merdo screamed in despair. 
While holding the wand, Aquaman said, "This wand might be of no use anymore", as was about to break it, but he heard a voice which said, "Don't!". It was Mera.
"Mera!", Aquaman said, hugging her tight. "What would you need this wand for?"
"I'll have our researcher preserve it and study it, so that it could be put to good use", Mera answered.
"Is that so? Well, go on then", Aquaman said, as he and Mera were about to go. But before they go, Nightwing and Batgirl asked Aquaman a favor.
"Aquaman, can you do us a favor?", Batgirl asked.
"Of course. What is it?", Aquaman replied.
"Can you please have your octopus ally retrieve Merdo the Wizard. We'd just like to send him to Batman so they could have a little talk. Sure he'll be glad to see the man responsible for putting him in an embarassing situation", Nightwing said.
"Of course", Aquaman agreed, as he summoned Topo to retrieve Merdo the Wizard's body. 
When they have already received Merdo, Nightwing and Batgirl now thanked Aquaman and Mera and said goodbye. The two now tied Merdo up, and brought him to the R-Marine, then they headed to Batcave. 
When they entered, they called Batman immediately.
"Batman! Special delivery for you!", Nightwing said out loud. 
Alfred, Batman, Talia, Jason all showed up. Merdo the Wizard has regained consciousness and asked where he is.
"Who's this?", Batman asked.
"It's the great Merdo the Wizard! The man responsible for sending you the bath tub which transported you to Atlantis. What can you say about him?", Batgirl asked.
"Actually, the three of us have", Batman said. 
"Oh no. Please don't!", Merdo pleaded.
Talia went at Merdo first, saying "This one's for sending my husband away from me!", then slapping him. 
Next, Jason Todd went at him, and said, "This one's for putting my father in danger!", then kicking his face.
Now, it was Batman's turn, "I only have two words: screw you!", then he punched Merdo the Wizard in the face, knocking him out unconscious.
"Are you all done?", Batgirl asked. 
"Yes, we are. He's already blacked out.", Jason said. They all smiled.
"Now, send him to the police", Batman told them.
"Alright, master", Nightwing replied.
They were about to go, but Alfred offered them to stay for dinner. Batman seconded. Nightwing and Batgirl immediately agreed and stayed there.
At Manta's hideout, he was waiting for Merdo to call for a while already but it didn't came.
"It's been more than 12 hours and still Merdo had no call. I guess he failed like the others", he said, as he summoned one of his last two remaining elites. This time, he called on Scavenger.
"You're next. You know what to do", Black Manta told him.
"Yes, I do", Scavenger agreed.
The episodes ends with Manta's sinister laugh.
== Characters ==
=== Heroes: ===
* Dick Grayson/Nightwing
* Barbara Gordon/Batgirl
* Ted Grant/Wildcat-a boxer and martial artist turned crime fighter and Justice League member.
* Arthur Curry/Aquaman
* Mera
* Bruce Wayne/Batman
==== Other: ====
* police
* Atlantean rescue team
* Topo
* Talia al Ghul
* Jason Todd
* Alfred Pennyworth-Batman's trusted butler.
=== Villains: ===
* Babyface-a literal baby-faced notorious gang leader at Gotham.
* Merdo the Wizard-a powerful sea wizard and foe of Aquaman.
* Black Manta
==== Cameos: ====
* Scavenger
* Ocean Master