Hello, just wanted to point out a few things before you start reading this. This just so happens to be the first fic I've written without help, so please keep criticism helpful and no 'Flaming Flames of Rage'. Second, word has all these messed-up grammar and spelling things, so try not to focus on those. Focus on the plot. Third, I want to avoid this being too similar to other YGO/HP crossovers, so if anyone comes up with cool ideas, put them in a review. Actually, review anyway, it will convince me to write more.

Disclaimer: I do not own yu-gi-oh or harry potter. Leo is mine. MINE!

Chapter 1: Meeting Leo

Leo was visiting yet another zoo today. Ever since he returned to the U.K. because of...certain events in Japan, he's been visiting every zoo he could find. You see, Leo loved animals, and hated seeing them stuck in some boring habitat. Sadly, his stubbornness would not allow him to stay out of trouble. Kind of like this.

"Why don't you let the snake live in Brazil?"

"Kid, this snake grew up in captivity, he wouldn't survive." A guard says trying not to hurt the young animal lover's feelings.

"Will you at least let me speak with him?" An annoyed Leo asks.

"We can't let you do that, you might get hurt." The guard is now desperate for his shift to end.

Leo peers over his shoulder and asks: "And what is keeping that kid from getting hurt?"

Yes, this is June 23rd, otherwise known as Dudley's birthday. Better yet, this is the day Harry Potter visited the zoo, causing a lot of guards a panic attack in the process.

"Holy! Escaped animal! Back up!" The guard runs off for help, literally leaving Dudley with the snake.

Leo witnesses the snake thank a pale child and escape. What really confused him (He could always understand animals) was that the child replied...in snake!

Understanding the pale child was in no position to help the snake's escape, Leo ran off to stall the guards, namely by convincing his guard friend that the snake entered the staff corridor, and would escape through the exit on the other side of the museum.

After outwitting nearly every guard in the zoo, Leo headed outside to find the escapee. He finally found the scaly outlaw blending in with the rough foliage.

"Do you want any help?" Leo earnestly asked.

"Why would you help me essscape from the humansss?" The snake retorts.

"Snakes are one of my favorite animals, and you obviously want out."

"What isss you name, human?"

Leonardo Brron Diomes (Dee-O-Mes) quickly convinced his new friend that slithering was not the easy way to Brazil. Instead, he smuggled the rather large reptile into the limo he had been using to get around that day. Limo? Oh yes, Leo was the younger of Michelangelo Goldd Diomes's two sons. Mr. Diomes just so happened to be the European Gozaburo Kaiba, just not dead. Leo, with his radiate blond hair and hazel eyes was the spitting image of his father (Except the father is kind of scary-looking, also like Gozaburo.), and so was named similarly. His brother took after their mother, with his light brown hair and black eyes, and so was given a nice, simple name of Jack Silva Diomes. Leo would not inherit the company, and so wasn't forced into a stuffy mansion with dozens of tutors. Instead, Leo was free to pursue his own passions over the summers in between boarding schools. When he arrived at his mansion, he faced the problem of explaining the rather dangerous occupant of the heated limo.

"Welcome home young master!" the butler said through the intercom.

"Thanks, but call me Leo."

"If the young master wishes it."

Leo sighed. He would never get used to everyone treating him with such respect.

"William, prepare another room in the reptile wing."

"Rescued a lizard from that poor zoo?"

"Actually, a snake."

"Hmm, how poisonous?"

"No poison. It's actually a constrictor."

"Excuse me? Did you say you snuck a constrictor out of a zoo?"

"Snuck isn't the proper term."

"Your father will be most displeased when he learns of this."

"If, right?"

"The story is already on three separate news stations." William replied after checking the television.

Leo sighed once more as he ordered the driver to drive up through the gates. HE wasn't even the one who started all this! In fact, as soon as he saw his scaly friend to a comfortable room and told him to trust all members of the staff (Leo prided himself on selecting an entire staff that he could get along with from his father's list of recommendations), he would open a video chat with Jack and tell him all about the strange pale kid.

Leo listened to his brother's rant, calmly waiting for a chance to get a word in.

"A constrictor? Why a constrictor? Why not rescue an animal that won't have the country in an uproar? People aren't afraid of monkeys! Why didn't you steal another monkey! " (Fun fact, monkeys eat their own babies sometimes. And now I've ruined monkeys for people.)

Several minutes later, Jack's over protectiveness started wearing off.

"I wish I could of at least seen the look on the guards face when you pointed out the snake."

"I still don't know how it got out." Leo wondered.

"Maybe the kid was a wizard or something." Jack offered.

"I highly doubt kids can have magic that easily."

"Leo, you haven't met an animal you couldn't understand. What else can possibly explain that?" Jack retorted.

"Next you'll be saying dragons are real too."

"You're just jealous a dragon would ripe a lion to pieces if the two ever met."

"Shut up. Oh, you have lessons in five minutes don't you?" Leo inquired.

"Sigh, never enough time to talk with my little bro." Jack said before signing out.

Time passed, and after nearly a month, Leo has forgotten all about the magical child he saw at the zoo. (Shipping the snake off to Brazil banished most memories of the strange break-out) What was going to be an average morning was thrown into chaos when an owl nearly crashed into Leo's head.

"What the hell?" Leo shouted as the owl swooped over his head and landed on the desk Leo was about to use.

"Mail, mail, magical mail!" the owl happily hooted.

"Magical mail?" An extremely confused Leo asked.

"Wizard mail, magical mail! Do you have any food?" The owl asked going from business to food in a heartbeat.

"I usually have some meat patties stashed in the-wait, wizards?" At this point Leo went from confused to intrigued.

"Read it, read it! What, no tip?"

"Fine! You get your bloody food, now let me have the mail!" Leo, though he loved animals, was quickly losing patience with the bird.

"Hogwarts school of witchcraft and wizardry?" Leo gasped as he read the title.

Author's Notes: I promise this fic won't focus on Leo, I just wanted to introduce him first. I'm a little proud of making Leo's first taste of magic the snake incident. Review! I need to know what is wrong/right with my story. Tell me what you think of Leo, as he is my work, and only my work.

P.S. Cookie to anyone gets the middle names without Google.

P.S.S. Nobody go and tell their little siblings about the cannibal monkeys. I do NOT want my readers to lose internet privileges for scarring someone for life.