This is a crossover with Trollhunters. This takes place in season 1 of Trollhunters and after Ninja Camp. I highly recommend watching Trollhunters because you will not be able to understand anything unless you watch it but I will try to explain to the best of my ability for those who have never seen an episode. Also, when something looks like this then the language being spoken is Trollish. A language used in the show by trolls. Randy does know it and can speak it. Anyway, on with the story.

Both Susan and Howard noticed that Randy was acting differently. He seemed upset and frustrated about something ever since he and Howard returned from Ninja Camp. Howard explained to Susan that Mac Antfee was leading the camp and he wanted the mask back from Randy. Susan knew that Mac Antfee was always a sore subject even since her prom night. Randy only talked about it briefly before he never spoke about it again.

Susan was then called to go on a business trip to Arcadia Bay and since Randy was off from school the week she was going, she decided that it would be a perfect opportunity for him to get a break and not worry about the past.

"Why are we coming here? I have to stay in Norrisville to protect it," Randy told her as they boarded the airplane to Arcadia Bay. "Randy, Howard's been telling me that you've been feeling stressed since Ninja Camp." Randy crossed in arms in anger and told her, "I'm fine. I need to protect Norrisville." Susan gave him a look and said, "Randy, you need to take a break. I already know that the Sorcerer needs you to escape and Howard is going to do everything he can to prevent any stanked monsters." Randy sighed in defeat after a few minutes. The Cunningham's always had a way to make him comply to do something he didn't want to.

"All right. It would be nice to get the whole 'Mac Antfee' thing off my mind. So, where are we staying in Arcadia Bay?" Randy asked. "We are actually staying with an old friend of mine. Barbara Lake and her son, James Lake Jr., who goes by Jim, is about Howard's age so the two of you should get along," Susan told him. Randy nodded and stared out the window of the plane as they took off. 'Maybe this will be good for me.'

Barbara Lake was very excited to meet her old friend and her nephew. Susan talked about Randy often but she found odd that she didn't know his name until a few months ago but she decided to not ask about it. She even brought Jim and Toby to meet them. "So, how come you never talked about Susan and her nephew?" Jim asked. "I don't talk to Susan as much as I use to when we were younger. We were penpals in high school but lost touch after a few years. She needs a place to stay for a business trip she's taking here and decided to bring her nephew since he doesn't have school this week."

"So, he's our age?" Toby asked. "Susan said that he was around 14, so you two are older than him," Barbara told them. After another few minutes, Barbara saw Susan and Randy. "Susan! Over here!" Barbara shouted. Susan and Randy ran over to the trio with their suitcases.

"Hey, Barbara. This is my nephew, Randy Cunningham," Susan told them. "Hey, guys. You must be Jim, Toby, and Dr. Lake. My aunt told me all about you," Randy told them as he shook their hands. "Dude, you don't look fourteen, you look at least 15," Toby told him. "Yeah, I've been told that a few times," Randy told him bashfully. "Why don't we get going? You two must be exhausted from the plane ride," Barbara said.

After about 20 minutes, they all arrived at the Lake house and Toby went home since he said that he needed to check on something and the sun was almost down. "Wow. You guys have a nice home," Randy said. "Thanks. You'll be staying in my room, Randy. I'll show you where that is," Jim told him. Randy nodded. "Sure." The two went up to Jim's room and Randy helped make the makeshift bed. "My aunt told me about your dad. Sorry. Mine died when I was young." Jim smiled and said, "Thanks. What about your mom?"

"Died when I was a baby. She got sick. Aunt Susan has been good to me. Your mom is lucky to have you," Randy told him. "Thanks, your aunt is lucky to have you too," Jim told him. Jim's phone rang and he answered it, "Hello? Okay... I'll be there soon."

"What's wrong?" Randy asked concerned. "Tobes need my help with something," Jim said as he started to leave the room. "Need any help?" Randy asked. "No, we got it. You can look around. Just stay out of the basement. We got pests and they all have rabies," Jim told him. Randy nodded in understanding and Jim then left in a hurry. 'Weird, but I've seen weirder.' Randy then walked downstairs and told Susan that he was going to walk around town.

Randy just walked around just to smell the fresh night air. For him, it felt nice to breathe fresh air since Norrisville was a loud city and there were a lot of factories there. 'Man, if I didn't have to protect Norrisville all the time, I would live here. No monsters, no sorcerer, no stress, just a beautiful forest, and a quiet city.' He soon went by the school and walked across the bridge but stopped when he noticed something weird. He hid in the rafts under the bridge when he noticed Jim, Toby, a girl he didn't know, and a giant moving rock with green moss with another giant rock with six eyes and four arms. 'What the heck?! Are those trolls?!'

This confused Randy since he hadn't seen trolls in hundreds of years. 'Is there a hearthstone near here? Guess so, but... how do Jim, Toby, and that girl know about them?' Then Randy realized something bad. 'If trolls are here, then there are changelings here. This is not good.' Randy decided to follow them so he hid in the shadows.

"What are we going to do about Stricklander and Angor Rot? They are going to try and take the amulet and the other pieces of Killahead Bridge to free Gunmar again," Jim said with worry in his voice. "I am not sure, Master Jim. But we must be careful. Knowing the changelings, they will try to free him at any cost," The blue troll said. 'That must be Blinky. I remember him from the Battle of Killahead but I don't know who the other troll is or the girl. Where is Deya the Deliverer? Shouldn't she be dealing with this and not Jim and his friends?' Suddenly, he heard the bigger troll with green moss take a deep breath. "What's up, wingman?" Toby asked.

"Someone... close..." Randy froze. 'Please don't catch my scent. Please don't catch my scent.' Randy pleaded in his mind. "A changeling, perhaps?" Blinky asked. "No... human..." Wingman jumped up and tried to grab Randy but he dodged him but he miscalculated the jump and he fell to the ground. "Randy?!" Jim and Toby shouted. Randy stood up and just looked at everyone. "Uh... hey... how's it... going?"

"Ah... the master ninja!" Blinky ran over to Randy and gave him a hug. "Uh... nice to see you again... Blinky... but can you put me down?" Blinky set him down. "Sorry, master ninja. It's good to see you again." Randy nodded. "You too." Jim, Toby, and the girl just stared at them extremely confused. "Blinky, how do you know Randy?"

"He was in the Battle of Killahead. Merlin summoned him to aid us in the battle against Gunmar," Blinky told them. "You sure it wasn't his ancestor?" Toby asked. Randy shook his head and said, "No, I was at the Battle of Killahead. Yeah, it was not fun to be summoned to Bulgaria to fight against giant trolls and changelings."

"So... you're..." Jim tried to say but Randy finished for him. "Over 800 years old... yes. Before any of you ask, just call me Randy and yes, Susan knows who I am. What's your name, young lady? I never got it."

"Oh... Claire and that's AAARRRGGHH!," Claire told him. "So... Jim are you the Trollhunter? I thought Deya the Deliverer was the Trollhunter," Randy said. "Ah, yes... it's been a few hundred years, Deya has felled then Kanjigar became the Trollhunter until he felled then Master Jim received the amulet and became Trollhunter," Blinky explained. "Okay, that makes sense and what about Merlin? I'm still upset at him for summoning me to Bulgaria."

"Gone... no one knows..." AAARRRGGHH! told him. Randy nodded. "Okay, hold up! First, Randy, how are you over 800 years old when you look 14? Why did Blinky call you master Ninja?" Jim asked still lost. "The first question is a long story but I thought it would be obvious. I'm a ninja. I've been training for over 800 years. I wouldn't call myself a master but I handled myself well in the Battle of Killahead. Bular was a pain though," Randy told them. "Ah, yes. We should get to Trollmarket. I'm sure many of the trolls would be happy to see you, Master Ninja," Blinky said gleefully. He then opened the door to Trollmarket and the six of them entered the door.

Vendel was not a patient troll and he certainly wasn't a happy one. He was quite irritated when Blinky brought in another human along with the Trollhunter and friends. "Blinkous Galadrigal, why have you and the Trollhunter brought another human to Trollmarket?" Vendel demanded. "Vendel, this is the master ninja, the same master ninja that came to our aid in the first Battle of Killahead." Veldel walked closer to Randy and studied him closely.

"Are you really the master ninja?" He asked curiously. The three teens gulped in fear since they knew that Vendel was not a troll you wanted to mess with. "I am. Merlin summoned me in Bulgaria, which I was, and still not, happy with. He asked me to help Deya the Deliverer and the rest of Trollmarket stop Gunmar the Black." Jim, Toby, and Claire were shocked when Vendel not only laughed but that Randy could speak fluent Trollish. Even Claire was still learning how to speak in fluent troll.

"You are the master ninja. What brings a great hero like yourself to our Trollmarket?" Vendel asked. "I actually didn't know that there was a Trollmarket here and I just needed a break. Never expected to find trolls here though."

"Hold on, I'm still confused. How are you over 800 years old and a ninja?" Jim asked still confused. "Well... when I was 14, I was chosen to be a ninja from my clan and that granted my immortality. Skipping about 200 years or so, Merlin summons me to Bulgaria and asks me to help and he disappeared after he summoned me. Speaking of which, where is Merlin? I'm still mad at him for summoning me to Bulgaria without my permission."

"Unknown. We all theorize that he died during the First Battle of Killahead," Vendel told him. "First? When was there a second one?" Randy asked confused. So, Jim then explained everything that happened since he found the amulet. "So, you're the first human Trollhunter and you fought the Changelings who found all the pieces to the Killahead Bridge which we all spent almost 50 years hiding?"

"Yes," Jim answered.

"And you killed Bular, son of Gunmar?"

"I did, not an easy battle, by the way," Jim told him.

Randy scoffed. "Tell me about it. I fought him and even then, that was hard. So, now the Changelings are in America and Angor Rot has returned and he wants to kill you along with Stricklander?" Randy asked.

"That's pretty much it," Jim told him.

"Okay... so, how can I help?" Randy asked.

"You... want to help? Why?" Claire asked. "Yeah... you seemed pretty upset that Merlin summoned you all those years ago," Tody said confused.

"Yes, I was mad at Merlin but he told me that he was going to use his magic to protect my home while I was in Bulgaria and when I was not needed, then I was to be teleported back to Norrisville like nothing ever happened. So, yes, I'm still upset with him but that doesn't mean a whole lot since as a ninja, it's my job to protect any creature out there. It seems that Merlin knew that so he summoned me."

"How can you help?" Jim asked. "Ahh... the master ninja is a force to be reckoned with. He even Gunmar himself had a hard time battling the master ninja," Blinky told them. "And I, with Gunmar, Angor Rot, and Bular. I battle a few Changelings as well."

"Yeah, but can he beat the Trollhunter?" Toby suggested. "Tobes!"

"Excellent idea! The Master Ninja is a force to be reckoned with. Not even Deya the Deliverer had the chance to battle him and if you had a battle with him then it would make Trollhunter history. Even more than you're battle with Draal," Blinky told him. "Wait, you battled Draal. I nearly had a fight with him a few hundred years ago. Did you beat him?"

"Yeah, he did. So, battling you might not be as hard..." Once Toby said that he instantly regretted it. "Tobes!"

"That sounds like a challenge. Come! I'm sure the trolls of Trollmarket would love to see the return of the Master Ninja," Vendel said then he walked out along with Blinky and AAARRRGGHH!. "Jim, according to Troll customs, which I would rather not disturb and with the honor of my ninja clan, we should fight. Come on." Then Randy walked out with Claire, Toby, and Jim following from behind. 'Randy's just a ninja, I've battle Stricklander, Bular, Draal, Nomura, and hundreds of other enemies and survived. How hard could Randy be?'

In the Trollhunters training room, there were hundreds of trolls cheering for both the Trollhunter and Randy. Who had more followers was hard to say. Jim had his Trollhunter armor on and Randy had his ninja suit on. "Are we seriously letting Jim do this?" Claire whispered to Blinky, Toby, and AAARRRGGHH!. "It is tradition. When Master Randall was here hundreds of years ago, he battled Deya the Deliverer. A great battle that was."

"Who won?" Toby asked. "Deya the Deliverer, but Master Randall is a ninja who has been training for hundreds of years, so Master Jim's chances of win could be dire." Clari and Toby looked at their friend worried as both got their swords ready. "I've been training on this course for months and Draal helps me with sword training from time to time. What about you?"

"I may not have a troll or a grand training arena but I do have a book with the knowledge of my ancestors and it helps that there is a monster or robot attack in my hometown," Randy told him. "Huh? That's one way to do things," Jim said. An alarm sounded and the fight was on. (Sorry if this fight scene is bad. I'm not good with fight scenes.)

Swords clashed and the trolls cheered loudly. The fight between Jim and Draal was exciting but a fight between Jim and Randy was much more exciting. The platforms started to move and the two fighters didn't seem fazed. "Thought you'd be more affected to the moving platforms. I was pretty shaken," Jim commented. "Being a ninja for as long as I have, you learn to adjust to anything. Including moving platforms."

With Jim being on a lower platform, Randy jumped down to deliver a downward slash at Jim but he blocked it. "Impressive. Even Deya the Deliverer had a hard time blocking that attack." Jim pushed Randy off of him and he landed a good distance away from him. "Thanks, been practicing for a while."

The two continued to fight sword to sword combat until the ringing of a phone made them stop. The platforms stopped moving and the two answered their phones. "My mom wants us back home. Maybe we can finish this fight another time?" Jim asked and Randy nodded in agreement. "Of course." While the Trolls were disappointed, they did know the honor of the Master Ninja and their Trollhunter.

Randy was about to leave Trollmarket but AAARRRGGHH! and Vendel asked to meet with him privately. "What's wrong?" Noticing that they were now alone, AAARRRGGHH! showed Randy the stone under his arm. "Creepers Sun poison? I've heard of it but never encountered it." AAARRRGGHH! nodded as he lowered his arm. "I thought that we wouldn't be able to find a cure but since you arrived I thought you might be able to do something. I was able to slow the process with the Hearthstone but I know nothing of how to cure it." Randy put a hand to his chin and thought to himself for a minute. "Hmm. I have the Art of Healing. I can try that but there is no guarantee that it will work."

AAARRRGGHH! lifted his arm once more and Randy put his hands on the wound. He took a deep breath and concentrated, his hands began to glow red as they began their healing process. Randy removed his hands after a while and there was no difference. Randy sighed sadly as AAARRRGGHH! lowered his arm. "I'm sorry but this poison something my ninja clan can't cure. The Changelings probably suspected this when they made it. You must get the cure from them otherwise... I'm sorry." Vendel nodded. "Yes... thank you for trying anyway, Master Ninja. It was good to see you after so many years. What do you think of our new Trollhunter?"

"He's good. I can see him becoming a powerful warrior. I think Merlin made a good choice. He's a crazy wizard... but I can see why he does what he does. I need to leave. Good-bye, Vendel," Randy said waving as he walked away. "Good-bye, Master Ninja."

Randy stayed with Jim and his mom for the rest of the week. There wasn't any kind of Changeling activity which greatly relieved Randy since he came to relax. But that didn't stop him from training and helping Jim with his sword training. The fight with Draal was interesting for him. Just like with Jim, the two were evenly matched.

Just before Randy left Jim definitely needed advice from Randy. "So, how do you think I could defeat the Changelings and Angor Rot?" He asked. "Don't go at it alone. Your friends are loyal to you. You'll figure something out. I know it. You're the Trollhunter. If you can defeat Bular, then you can save your friend's little brother and defeat the changelings, Angor Rot, and Gunmar."

With that, Randy left Arcadia Bay feeling better than he did. He saw the loyalty in Jim's friends which he also sees in Howard. He's not alone, he has Susan and Howard and that's all he could ask for.

Sorry this took so long. I've been working a lot lately and I just couldn't decide what I wanted to do but here it is! Because I've been wanting to do this episode for a while, the next episode it McFear Factor. Can someone guess Randy's greatest fear? It is not chickens but if you read the first Halloween episode then you might be able to figure it out. Don't forget to fav, follow, and review, please! See Y'all next time! Bye! :)