Dressed in a brown hood covering the top half of his face Scarecrow approached the Arendelle castle gates. He held a mysterious black box in his right arm that held the fear gas bomb that he planned on releasing unto Arendelle. By planting it in the castle, the biggest structure in Arendelle and placed in the center of the kingdom his gas would spread and cover the entire kingdom, causing millions to choke in fear.
Scarecrow wasn't alone though, surrounding the castle in hiding was the League of Shadows, Ra's Al Ghul had given them precise instruction to assist Scarecrow in taking the castle. The royal family was to be left alive according to Ra's to get Elsa to come out of her hiding, the castle employees though was all fair game.
As Scarecrow approached the gates he was stopped by two of the castle guards.
"Halt, you may not past unless you have been approved by the Queen. You have a meeting scheduled?"
"No," Before the first guard could react Scarecrow injected the syringes on his glove into the guard's chest injecting him with Crane's fear gas. The second guard pulled out his sword attempting to pursue Scarecrow but in a fearful rage the first guard attacked the second guard, screaming in terror and calling him a demon from hell. Scarecrow chuckled to himself as the first guard overtook the second guard and rammed his sword through his chest before turning it onto himself. With the two guards dead Scarecrow walked right through the gates and into the palace premises. The reaction to the outside guards attracted many other guards at the castle. Without stopping, Scarecrow calmly took out two grenades filled with his fear gas and tossed them at the guards causing them to freeze, fall to their knees in a choking fit and then fall to the ground screaming in fear.
"The front guards have been taken care of," Scarecrow told Ra's from his earpiece. "Send your army in."
"Right away." Ra's replied as he stood on the castle roof with many other members of the League. "Assassins, move out!"
Inside the castle Anna could hear the screaming of the guards as well as the sounds of swords clashing against each other.
"What is going on out there?" Anna asked curious, she was about to open her bedroom door before one of her guards stopped her at the door.
"You can't come out here!" The guard replied "For your protection you must stay inside. Scarecrow is here along with..."
Anna then heard what sounded like a sword being ran through the body along with the scream in agony. Anna backed away in fear as she grabbed for a sword hanging from the wall. She pointed it towards the door as the door handle rattled. Anna clung onto the sword handle tighter as she heard the banging of someone trying to get through, then with a bust several Assassins came in swords raised and surrounded Anna.
"I'd lower the sword in I was you Princess," one assassin replied "We all know you can't take all of us."
"She might not be able to," Robin was soon heard saying, "But I can!" Robin burst through the group with the staff, and took the league head on.
"Princess Anna, get out of here!" Now!" Robin ordered. Anna didn't argue, clinging on to her sword tightly she ran out of the room to find Kristoff and to find a safe spot.
Robin swung his staff at one assassin's shin knocking him to the ground before slamming his staff across the assassin's face. One assassin then clashed his sword against's Robin's staff, struggling for a couple of seconds as the two of them each tried to gain the upper hand, Robin then released his pressure, slid between the assassin's legs, planted his staff behind the assassin's knees, then took the assassin to the ground as he screamed in pain. Robin followed that move by smacking another guard in the left side of his neck before leaping in the air and tossed a wing-ding, hitting several assassins in the arms and legs and knocking the weapons out of them. Landing on the ground he spun his staff and laid in onto every last assassin the room covering Anna's nice clean carpet with several bruised and unconscious assassins.
"I hope the castle maid won't be to mad with the mess I made." Robin chuckled before he felt a blow coming from the back of his head. His head spinning he fell to the floor and saw Ra's Al Ghul standing over him a staff of his own in his hand.
"Not as messy as what Arendelle will soon be." With the stomp of Ra's foot he quickly knocked Robin out.
"Kristoff, Olaf!" Anna screamed as she ran down one of the many hallways in the castle,
"There's the princess, grab her!" She heard one assassin cry out. Panicking Anna took off running, but the assassin was fast and he was soon gaining speed on her. In a attempt to ditch him she jumped onto the stair rail and slid onto the bottom floor hoping the assassin wouldn't be able to keep up. She thought wrong, the assassin ran down the stairs at the same pace as earlier and continued his pursuit.
"Kristoff? Olaf?!" Anna cried out as the assassin continued his chase downstairs. The assassin reached out his arms and grabbed Anna by the back of her gown but it was right them that Anna heard a thud and the assassin loosened his grip. Turning around Anna saw Kristoff holding his pickax in his head, and a bloody spot on the assassin's head where he planted it.
"Oh Anna!" Olaf ran up and hugged the princess in fear. "There are bad people everywhere, what's going on?"
"I don't know, Kristoff responded but we are getting out of here." Kristoff took Anna by the hand and turned to flee the castle when Scarecrow suddenly appeared from behind and shoved his syringes in Kristoff's chest.
"Kristoff!" Anna screamed in horror before taking out her sword and pointing it at Scarecrow's direction. Scarecrow slowly approached the terrified princess as Kristoff fell to his knees shaking in fear."
You have never taken a life have you princess? Your hands are shaking on that sword, your scared. You want to be able to defend yourself but you are afraid of committing a action you can't take back. I have taken several lives throughout the years, and each life I take is easier than the last. I could easily take your life right now."
"You stay away from her," Olaf responded trying to defend his princess. Scarecrow just looked funny at the snowman and kicked his head across the hallway before continuing to walk towards Anna, who was taking several steps back in fear.
"Go ahead, try to use that thing, let's see how fearless you are?"
Anna's hands shook more and more, and she felt the sword getting heavy under pressure. Seeing his opportunity Scarecrow lunged and injected his fear toxin into Anna. Anna's eyes went wide as she saw a vision of Hans approaching a distraught Elsa. She saw herself trying to reach her in time despite turning into ice. This time though she was unsuccessful and Hans decapitated Elsa where she laid. Anna fell to her knees crying in anguish at the vision as Scarecrow stood over her laughing.
"What is your biggest fear princess, the loss of your kingdom? Your sister? Soon you will experience all those fears coming true and this time, neither Elsa, nor Batman will be able to save you." Scarecrow bent down and reached into Anna's pocket and grabbed her phone and tossed it at Anna's feet. "Go ahead, call him, see if he will save you."
Her hands shaking from the fear gas, she grabbed the phone and dialed Batman's number. Batman was in the streets of Gotham returning from his incident in the Arendelle caves when he got the phone call.
"Princess Anna, what's wrong?"
"Scarecrow is here, he's got a army and he is taking over the castle, you got to get here quickly!"
"On my way!" Batman then shot his grapple in the air and took to the skies. while he was gliding he called Barbara on his earpiece.
"Batgirl I need you and the Birds of prey here as soon as possible."
"What's wrong Bruce?" Barbara asked
"My worst fears have come true, Scarecrow and the League of Shadows has teamed up, they have Elsa's family captive, I am going to try to free them but if Scarecrow's fear toxin is released than all hell is going to break loose."
"That's where we come in I take it?" Barbara replied "We are on our way Bruce, hang tight." Barbara then turned to Elsa. "Your home is in trouble."
"No?" Elsa gasped
"Don't worry, we are about to save it, suit up."
Anna, Kristoff, Robin, and Olaf was all tied together as Scarecrow planted the fear gas bomb in Arendelle's throne room. By order of Ra's Al Ghul there was a assassin stationed at every window and door just in case Batman came bursting through.
"Soon," Scarecrow chuckled to himself "Very soon, Arendelle will know what will fear is."
Suddenly Batman came crashing through one of the stain glass windows in the throne kicking one of the assassins to the ground, before throwing a batarange at Scarecrow, striking him in the shoulders.
"Batman, how nice of you to join the party," Scarecrow taunted. "You will now get a front row seat with your friends as Arendelle destroy's themselves on their own fear." Five assassins then surrounded Batman, weapons wielded. "Take him, but keep him alive to watch this kingdom crumble."
Batman readied himself as the assassins charged his way. One assassin swung his blade only for Batman to catch it with his hands. Batman raised a elbow and slammed it against the assassin's wrist knocking the blade out of his hand before tossing him into a another armed assassin, knocking the other assassin's blade out of it's hand too. Not wanting the assassins to gain any momentum Batman then shot out his grapple gun around one of the unarmed assassins, swung him ninety degrees into the remaining three armed assassins knocking them to the floor disarming them.
With the assassins now unarmed now came the part of taking them down. One assassin swung his leg in the air towards Batman's head but Batman grabbed the assassin's leg, tackled him to the ground and snapped it. The sound of the bone snapping could be heard across the room as the assassin screamed in pain. Making a one eighty turn Batman dodged a swing by a second assassin, planted two punches to the assassin's abdomen, grabbed him by head and slammed the assassin's head into his raised knee. The third assassin swung his fist but just like last time Batman dodged it, this time Batman swung his foot behind the assassin's heel tripping him onto the floor, Batman then leaped in the air and slammed his foot into the assassin's face. Batman then turned to the last two assassin's who he noticed had grabbed their weapons again. Leaping into the air Batman dropped his smoke pellets blinding the assassins in the smoke. Then, Batman took the first of the two assassin's out, sneaking from behind and wrapping his arm around the assassin's neck, cutting off enough oxygen for the assassin to pass out. Then he grabbed the second assassin by the back of the head and slammed his face onto the floor.
"Don't move Batman," Scarecrow called out once Batman took out the last assassin. As the smoke cleared Batman could see he had his hands on the detonator. "One move and the bomb detonates, filling all of Arendelle in fear toxin."
What Scarecrow didn't expect was that Robin had used his wing-dings to cut through the ropes that held him down. Once the rope was cut Robin took out a second wing-dings and tossed it at the detonator, hitting it and causing it to fall to the floor and shatter.
"No!" Scarecrow cried out as Batman lunged at him, and pinned him to the wall.
"You lose Scarecrow," Batman growled.
"You are going to pay for the crimes you have committed here in Arendelle." Anna hissed as she joined Batman by his side.
"Oh I wouldn't be so sure," Ra's Al Ghul was suddenly heard saying. Batman and Anna turned around and saw that Ra's held a second detonator. "You see that detonator was nothing but a decoy, I possess the real one, and now..."
"No!" Anna cried out as Ra's pressed the detonator. Suddenly the bomb went off, blowing the roof of the castle clean off, causing everybody to be blown in different directions as the fear toxin spread across Arendelle, filling the skies.
"Now Arendelle will be consumed in their fear."