Hey people! This is going to be a quadruple crossover. It'll be Harry Potter, Skulduggery Pleasant and Doctor Who for now, but I will merge Fantastic Beasts in later ;)

Peace out, DaFartingUnicorn49

Prolouge

The lights went out. "Doctor?" Clara called. "What's happening?" She heard the nervous tone in his voice. "I don't know." He answered. The soft lights of the TARDIS flickered back on. The was a statue. Standing at the door. It's mouth wide open, but smiling. "Is it...laughing?" Clara questioned cautiously. "I...I think so." The Doctor grinned, pulling his sonic screwdriver into a full scan. "I've never seen anything like it! It's time energy is completely reversed and it's certainly quite happy about it." He continued probing and prodding. Clara rolled her eyes. "Can you give me a clue as to what this thing is?"

"It's a Weeping Angel. I think." He answered. Clara frowned. "It doesn't look like a weeping angel. It looks like a happy angel. A Laughing Angel."

"That is a good name." The Doctor told her.

She grinned. "I pride myself on being absolutely brilliant." She answered. He grinned back. "I'm pretty sure that's my job."

"Anyway," Clara sighed. "Enough talk! Let's get this thing out of here." The Doctor made a sad face. "But I wanted to study it." He whined. Clara smiled internally. She knew how to deal with this. "But you don't want to hurt the poor Snogbox, do you?" The TARDIS made an whirling noise. That was the first time she had actually agreed with Clara. "See," Clara smiled sweetly. "Even Old Snoggy agrees with me." The Doctor gave a long sigh. "Fine. I guess that is a miracle. We'll dropped her off in 1926, New York." Clara cocked her head to the side. "Why so specific?" She questioned. "Something big happened. I can't remember what though. No one can. That's what's so big about it. If I drop her off here she might just be lost, with a time incident this big." He pulled a lever and pressed a button. And off they went through time and space. Clara watched nervously as the lights flickered on and off, on and off. Each time the Angel got closer and closer, it's mouth widening each time. She grabbed the Doctor's hand and squeezed. "Hurry!" She whispered. "I'm going as fast as I possibly can." He mumbled. She tightened her grip on his , the TARDIS jerked sideways and the doors flew open. Clara slipped. "Grab on to something!" The Doctor yelled as they began to slide out the door. He grabbed a rail and she grabbed his hand and before they knew it, they were dangling upside down. But the Angel put up a fight. It stuck to the ground for a few seconds, before it tumbled out into 1920's New York. Clara gave a sigh of relief as the TARDIS closed it's doors and spun till it was the right way up. Clara sighed in relief again and was just about to sit down when an alarm sounded and the TARDIS spun out of control again. Clara yelled in surprise. "What is it now?!" She shouted over the alarm. The Doctor checked the TARDIS's control screen. Then he smiled. "WHAT?" Clara roared over the loud clatter of the alarm. He looked at her. "I've got mail!" He grinned excitedly.

Valkyrie Cain mumbled in her sleep. She tossed and turned for a bit, before waking up in cold sweat. Another nightmare. Well, that was the price of going out and saving the world nearly every day. She sighed and checked the time 4:30 am. Great. She got up and pulled on the black clothes Ghastly made her. Skulduggery would be there at five anyway. She grabbed a few random clothes and the essentials. Toothbrush, toothpaste, hairbrush. She tied her hair into a ponytail and tapped the mirror. The reflection stepped out of the mirror, staring blankly at Valkyrie. Valkyrie nodded and it nodded back. "I'll look after them." It whispered. She nodded again and checked the time. 5:06. She saluted the reflection before jumping out her bedroom window.

The sleek, black Bentley was parked round the corner. Valkyrie shoved her small duffle bag in the boot and climbed into the car that she had grown to love almost as much as Skulduggery. Skulduggery tapped his watch. "7 minutes late, Valkyrie. That is totally unacceptable." He told her. She glared at him and he chuckled. "Now Detective Cain," he scolded playfully. "There is no need for such rudeness." She smiled slightly. "Where are we going again?" She questioned. "Hogwarts School for Witchcraft and Wizardry. Something strange is happening with the wizards, so when the headmaster sent out a job ad, I applied." Skulduggery explained. Valkyrie raised an eyebrow. "So, what are we teaching?"

"Well, as they are apparently going through 'dangerous times' so their 'Ministry of Magic' applied a special extra Defence Against the Dark Arts program that is compulsory for years four and up."

"Is a Ministry of Magic like the Sanctuary?" Valkyrie questioned. Skulduggery nodded.

They drove on. Valkyrie occasionally complained and Skulduggery would pretend to be annoyed and tell her to shush. But then he would do what she wanted anyway. They drove for about eight hours before they came to Kings Cross Station. They jumped out and grabbed their bags from the boot. Valkyrie rolled her eyes as Skulduggery gave his car one last pat, but she knew she would miss it too. Then, they trudged into the station.

A small, skinny boy pushed a large trolley towards platforms nine and ten. His snow-white owl made no noise as he chattered with a freckled, red haired boy, a girl with bushy, brown hair and a young, freckled girl, also with red hair. They trailed behind two ginger-haired people. A man and a woman. They arrived at the wall between platforms nine and ten. The parents went first, plunging through the magical wall. The two girls went next and then the boys looked at each, grinned and went straight through the red brick.

Harry Potter looked up at the large steam train in front of him. He sighed happily. Finally, he was going back to his most favourite place in the world. Hogwarts. "Hurry up, you two!" Hermione hurriedly told them. "We're going to miss the train."

"Ok, ok we're coming." Ron assured. "Bloody hell. Come on, mate." Harry ran after Ron, towards the others. "There you are!" Mrs Weasley exclaimed. "We thought we'd lost you!" They all exchanged goodbyes and jumped on the train. The walked down for a while before finding an empty booth. Ron put all their bags up as the Hogwarts Express gave a final toot before taking off. Harry watched and waved to Mr and Mrs Weasley until the train rounded the corner.