Protection Detail

Disclaimer: I don't own Ben 10 and/or Ben 10: Alien Force and/or Ben 10: Ultimate Alien and/or any and/or all concepts and/or characters. They are copyrighted to Man of Action and Cartoon Network Studios. Likewise the Harry Potter Series is not mine, Harry Potter and all related characters and/or concepts are trademarked and copyrighted To JK Rowling. I am a mere Fanfiction author. With far too much time on her hands and no social life.

Warning/Author's Notes: This takes place during Harry's third year. While the book series takes place in the 90's originally, for the purpose of this story the book series and thus the Golden Trio's schooling and adventures take place in the 2000's. Specifically the 2003-2004 time frame. The Ben 10 (Ultimate Alien) characters' birthdays have been moved back and most of their adventures occurred in the late nineties and early 2000's, in this story. I have kept Canon, of both series, as intact as I could while doing this. I have completely disregarded the time-travel plots and the Buckbeak issues. Also, once again, I do not speak Latin or know the grammical rules. I just have a Classical Latin to English dictionary. Also, Hagrid's dialogue; I'm not going to even try. Just imagine it as he would say it. Please remember that this is my first real crossover, multi-chaptered and all that.

Pairings: Gwen/Kevin, Ben/Julie, Harry/Hermione.

Rated: T

Chapter One: Packing and Saying Goodbye

"Two hours people!" Gwen Tennyson called out as she and her friends rushed around, preparing for departure.

"In our time or theirs?" Ben Tennyson, her cousin, asked, sliding past her to pack yet more socks and underwear into a new luggage trunk bearing his initials.

"Ours." She responded as she packed winter clothes into an identical trunk with her initials, "Kev, you heard the Professor. No weapons are allowed."

Kevin Levin grumbled and began unpacking his favorite firearms from his trunk. The loony old man that appeared from nowhere a month ago was a sissy. No weapons, only wands. What good would a wand do when he couldn't do more than shoot a few sparks? How were they supposed to protect this 'Harry Potter' brat without a little violence?

"Remember to leave room for books and supplies," Julie Yamamoto voiced.

"Got that covered Jules," Ben replied, "Kevin's going to bug the trunks, make them able to hold an infinite amount of things."

"Don't forget Mister Foozy-Woozy, Ben, you still have nightmares without him." Gwen reminded him and her cousin flushed. "I don't need a plushie Gwen." He sniffed but she soon saw him place a stuffed dog into his trunk.

"Kev, I have your meds with me," she continued, "enough for the school year."

"You have the sedatives too then?"

"Yeah, but we won't need to use them…Julie, do you have Ben's ADD meds?"

"Yes, and the instructions from Cooper."

"And your epi-pens right?"

"Of course, calm down Gwen…"

Gwen took a calming breath and smiled apologetically, "Sorry guys, it's just we're going to a magical school in England…that's pretty far from home you know and I don't want any one of us to get there and realize we forgot something important. Especially with medications…I mean I'm sure they got magical meds and stuff but the stuff we use are tried and true…"

"We get it we get it," Ben sighed, "when mom's away the kids don't play."

"We're on duty the whole way through this Ben, we don't have time for 'play'," Gwen frowned, finally slamming her trunk shut, "You heard Professor Dumbledore, this Voldemort guy is just as bad as Vilgax and seemingly immortal. And he wants Harry Potter, a thirteen year old boy, dead. And with magic in play anything's possible…"

"You brought your spellbooks then?" Kevin asked.

"The more powerful ones yes. I doubt they'll be used in class though…and we are all going to pass this year right guys?"

"Of course," Julie nodded.

"Maybe," replied Ben, and then Julie glared at him, "Sure."

"No." Kevin mumbled.

Gwen smiled reassuringly, "We'll help you, you'll pass; I promise."

Before he could speak a word the fireplace roared to life with emerald flames and a giant of a man stood in the living room.

"Tennyson, is anyone named Tennyson here?" he spoke with a harsh, almost Scottish, accent.

"Yes sir. You must be Hagrid." Gwen stepped forward to offer her hand in a handshake. He shook her whole arm, "I'm Gwen Tennyson," she introduced herself before pointing out her friends, "he's Ben Tennyson, she's Julie Yamamoto, and he's Kevin Levin."

"I'm Rubeus Hagrid, keeper of keys and grounds at Hogwarts; I'm here to escort you to Diagon Alley. Grab your trunks and line up…"

"Right. Mom! Dad!"

The three with parents called and said parents assembled.

Hugs and goodbyes were exchanged before they each stepped into the fireplace, with a handful of glittery green powder, and disappeared into emerald flames.