Hello everyone. LooneyAces here and welcome to the tenth story of the Danny Phantom/Marvel Cinematic Universe Fanfiction crossover series, better known as DPxMCU. And what better way to publish this story than to publish it on my birthday. Well, this is now the first Ghostly Avenger titled story where the 'S' is included in 'AVENGER' now that both Danny AND Dani Phantom are the main characters of the DPxMCU series as a whole since Dani got the main character role in the series with Danny since the DPxMCU story DANNY PHANTOM: THE ULTIMATE RETURN, which was finished in January. So it will be Ghostly Avengers for now on. Anyway, to those new to the series, to catch up with the DPxMCU series, you'll need to read these following stories in order before reading this one, and instead of reading them in publishing order, you'll need to read them in the series' chronological order.

THE FENTON CHRONICLES

GHOSTLY AVENGER.

DANNY PHANTOM: THE ASGARDIAN DRAUGR.

DANI PHANTOM: THE ROGUED DRAUGR.

GHOSTLY GUARDIANS

GHOSTLY GUARDIANS VOL 2

GHOSTLY AVENGER: AGE OF ULTRON

GHOSTLY AVENGER: CIVIL WAR

DANNY PHANTOM: THE ULTIMATE RETURN.

Disclaimer: I do not own Danny Phantom and its characters. They belong to Butch Hartman, Viacom International and Nickelodeon. I also do not own the Marvel Cinematic Universe and its characters. They belong to Marvel Studios. Danny and Dani's outfits remains the same since TUR; Danny's 10 years later outfit and Dani's feminine version of Danny's suit, but they will wear armor later in this story. You can see them in the story's cover photo. Well, without further do, it's time to see Danny and Dani's first action against evil forces in the cosmos. I present you GHOSTLY AVENGERS: RAGNAROK!

Chapter 1: Vacation On Hold.

A Boeing 767 airliner lands at the John F. Kennedy International Airport in New York City, arriving from Amity Park, Minnesota. Minutes later, multiple people exits the terminal. Among the people were two siblings, one male and one female and both were almost identical twins. It is Danny and Danielle Fenton, the two superhero half-ghost hybirds and Avengers known as Danny and Dani Phantom, who are both known as the Phantom Twins. It's now been seven months since the end of the Dan and Dana Incident, when they have defeated their once alternate evil future selves Dan and Dana Phantom, as well as their allies and Harvesters, and destroyed the ancient and powerful ghost artifact the Universal Gauntlet. Since the end of the conflict, ghost fighting has drastically changed for Danny and Dani to the point that they got stressed out since their common enemies from the Ghost Zone has also drastically changed since the conflict. Because of this, their family and friends suggested them to take a break from ghost fighting while they handle things back at Amity Park. Danny and Dani have taken their family's and friend's advice and are now currently on a month long relaxing, ghost-free vacation and Danny also want to spend more quality time with Dani, who she had turned 19/7 back in May, despite that she had traveled to the city before she was adopted and has been to the former Avengers Tower with Danny. Danny was wearing a New York Giants Eli Manning home jersey, a pair of jeans and red converse shoes. Dani was wearing a red shirt with a white oval in the middle, her midriff exposed, a pair of blue jeans and blue converse shoes and her hair flow freely behind her back now that she longer puts it in a ponytail. Both exit the terminal with their luggage before Danny takes a deep breath.

"You smell that, Danielle? That's the smell of New York City environment." Danny said.

"Yeah... well we should fly to the hotel before we can do sight seeing." Dani said.

"No use of our ghost powers, Dani. Remember, this is a relaxing, ghost-free vacation for the two of us. And not to mention it would be difficult flying while carrying our heavy luggage." Danny said.

"It's a shame Jazz couldn't come with us. Would have been a nice sibling vacation." Dani said.

"Yeah, wish she could have come. Anyway, let's get a taxi to the hotel and then we can head to the city." Danny said.

Danny and Dani then takes a cab to their hotel. After unpacking their luggage at their hotel room, they then take the subway to the city before starting their sight-seeing. They visit many iconic places, like the Empire State Building where went to the top, One World Trade Center and the 9/11 Memorial Museum where they pay their respects, the Statue of Liberty, Central Park and Ellis Island. They also took the time to take pictures with their fans, or 'Phans' as they're called for them. They had just finished taking a picture with a man with black hair, his wife and two daughters.

"Thank you so much." the eldest daughter said.

"This means a lot." the youngest daughter said.

"No problem." Danny said with a smile.

After the nice family left, Danny and Dani continue to walk around the streets of New York City.

"Okay, where do you want to go next?" Dani asked.

"Hmm, maybe we can go to Times Square." Danny said.

"All right then." Dani said.

The two Fenton Twins continue their walk around the city. Danny then noticed a building, a care home called Shady Acres, being demolished. He also saw a tall blonde man with a beard wearing a grey sweater, a pair of jeans, black shoes and carrying a umbrella. There was someone else standing next to him. He couldn't make out the face but he could tell he's wearing a all black suit and had fair skin. Danny realized that the blonde man is someone he hasn't seen in a long time, two years to be exact. He stop Dani from walking any further before she turn her head to see the blonde man.

"Umm, Danny, isn't that..." Dani asked but gets cut off.

"No way, Thor?" Danny called.

The blonde turn to see Danny and Dani, revealing to be indeed Thor Odinson, better known as the Norse god of thunder.

"Thor!" Danny said as he and Dani approach Thor with smiles on their faces.

"Danny!" Thor said as he gave Danny a hug.

"Hi, Thor." Dani greeted with a smile.

"It's nice to see you again, Danielle." Thor said as he gave Dani a hug before looking at her and Danny. "It's good to see you, Phantoms. You two have become stronger than ever."

"What are you doing here on Earth? Last time I saw you, you left dramatically on a quest in the cosmos after Sokovia." Danny asked.

"And who's your friend?" Dani asked.

Danny and Dani look at the man in the all black suit. It is someone the two had not expected to see since Danny fought him and his army in the Battle of New York five years ago. It was Thor's brother Loki, the Norse god of mischief and an enemy to them!

"YOU!" Danny said as he tried to attack Loki, but Thor managed to stop him. "What's he doing here?! You told me he was dead! How is he still alive?!" Danny asked in shock.

Danny and Dani look at Loki, who smirk at them.

"Hello, Danny. All grown up I see." Loki said.

"Well, not happy to see you here at Earth again. And by the way, I fought in tougher battles since fighting you, including ghosts stronger than me and one seeking revenge against me seven months ago. Dani and I beat him and his sister. Guess what, no one fears me, and I have my friends and family, especially Danielle, by my side. Like I said in our interrogation, I strive every single day to make myself better, and so does Danielle." Danny said, remembering what Loki told him during his interrogation on him 5 years ago.

"Loki, I believe you haven't met Danny's sister, Danielle." Thor said.

"Well, it's a pleasure to meet the She-Phantom of the Phantom Prophecy, Danny's clone and sister. I believe we haven't..." Loki's words were cut off when Dani gave him a big slap across the face.

"That's for this very city." Dani said.

"You still not over that?" Loki asked.

"Nope." Danny and Dani said.

"Seriously, Thor, why have you brought Loki to Earth? Don't you remember the last time he was here." Danny asked.

"We're looking for my father." Thor said.

"Odin is at Earth?" Danny asked in disbelief.

"And in New York City?" Dani asked.

"Well, Loki said he brought him here, but..." Thor said as everyone looked at the demolished building.

"I swear I left him right here." Loki said.

"Right here on the sidewalk, or right there where the building is being demolished? Great planning." Thor asked.

"Yeah, some son you are." Dani said.

"How was I supposed to know? Can't see into the future. I'm not a witch." Loki said.

"No? Then why do you dress like one?" Thor asked, making Danny and Dani chuckle at that statement.

"Hey." Loki said, not liking that question.

"I can't believe you're alive. I saw you die. I mourned you, I cried for you." Thor said.

"I'm honored." Loki said.

Suddenly, two women approached Thor, Danny and Dani with excitement.

"Hi. Would you three mind taking a picture with us?" one of the women asked.

"Sure." Thor replied.

"Dani and I would like to." Danny said.

"Start figuring out where he is." Thor said before Danny, Dani and himself smile as the two women took the picture with their phone.

"Sorry to hear that Jane dumped you." the second woman said before leaving with her friend.

"What happen with you and Jane?" Dani asked as Loki, Danny and herself look at Thor.

"She didn't dump me, you know. I dumped her. It was a mutual dumping." Thor said.

"Why you did that? You two were a nice couple." Danny said.

Suddenly, some strange portal started to form around Loki's feet, which confuses him and puts Thor, Danny and Dani in alert.

"What's this? What are you doing?" Thor asked.

"This isn't me." Loki said.

Loki then fell through the strange portal before it closes.

"Where he go?!" Danny asked.

Thor then pointed his umbrella at a card that was left behind at where Loki stood.

"Loki." Thor said.

"What was that. A portal?" Dani asked.

"Definitely not a ghost portal." Danny said before looking at the card on the floor. "But maybe that business card on the floor can help."

Thor then picks up the card on the floor and reads it. It was an address that says '177A Bleeckers St'.

"Hmm, looks like we are gonna visit that address." Danny said.

"Definitely, big bro." Dani said.

"We?" Thor asked.

"Sure, Thor. We'll help you look for your father." Danny said.

"Yeah, you're our friend and fellow Avenger. Danny and I can put our vacation on a short hold to help you out." Dani said.

"And not to mention you did brought Loki here and now we need to know where he disappear through that portal too." Danny said.

"Thank you Danny and Danielle. You two are good friends. Shall we?" Thor said with a smile.

"Let's do it." Danny said.

And that's the end of this chapter. Well, Danny and Dani has no idea that their relaxing, ghost-free vacation is gonna turn into an unfortunate situation for them. Already, Butch Hartman, along with his wife and two daughters have their cameos in this chapter. And this is Loki's first DPxMCU appearance since the story that started the series; GHOSTLY AVENGER. Anyway, what will happen when Danny and Dani meets Doctor Stephen Strange for the first time? Find out next time in the next chapter and I hope you enjoy this DPxMCU story. Please review. :)