Harry runs into the Ice Queen of Slytherin during a late night trip to the kitchens.

As per the Hat's decision, Harry gets Sorted into Slytherin upon his arrival in Hogwarts—and suddenly, the future isn't what it used to be.

In which pureblood tradition doesn't always favor the purebloods.

The Maruaders were not nice people, but what if the gang was as Dark as they should at first glance appear to be? AU Marauders era one-shot.

The bonds of blood hid Harry Potter from those who wished to harm him. Unfortunately, foreign dark wizard Joachim Petri had no idea who Harry Potter even was. A wizard "rescues" a clueless Harry Potter from the Dursleys, but not all wizards are good people. Eventually Necromancer!Harry, Master of Death!Harry, no pairings.

After the war, things didn't go as planned for Harry. He tried to be an Auror, but it wasn't for him. Instead, he turned to Quidditch. Now, at the 2002 World Cup, he looks back on what went wrong and discovers what he always wanted.

Harry Potter saw things. Many things didn't gaze back. Harry Potter heard things. Many things didn't listen back. Five pitiful senses were not enough to gaze into the deep abyss, but with magic being magic a sixth sense is more than enough to see what humans were never meant to see. Harry Potter and the Cthulhu Mythos clash.

Shortly before his 11th birthday, Harry Potter disappears from Privet Drive. Accidental Magic takes him halfway through the country, and while Harry tries to find his place in his new life of magic and mystery, the Wizarding World is left to deal with the consequences of his disappearance.

Some things never change, no matter a past which no longer sleeps. This is a lesson Alastor Moody must learn first-hand.

There are some things the human race is not meant to know. Harry didn't care instead, he made it his life's purpose to learn them. Oneshot

Book 2. As the Second War begins, Voldemort becomes obsessed with harnessing the realm of Old Magic to his own ends. Meanwhile, Harry has to contend with the Ministry, ancient foes and the machinations of a world he barely understands.

Book 1. Follow Harry and Dumbledore as they descend into the depths of Old Magic seeking power and redemption in equal measure. En route they encounter ancient enchantments, a heliopath and an evil that could burn the world.

COMPLETE. Firefly: :Harry Potter crossover Post Serenity. Two years have passed since the secret of the planet Miranda got broadcast across the whole 'verse in 2518. The crew of Serenity finally hires a new pilot, but he's a bit peculiar.

Every seventy years members of the Order of the Bath, a British order of chivalry, are being killed off. That is until Harry is brought in to hunt the killer or killers down. Harry/Padma. *Complete*

Nine years ago Vernon Dursley brought home a certain puzzle box. His nephew managed to open it, changing his destiny. Now, in the midst of Voldemort's second rise, Harry Potter has decided to recreate the Lament Configuration... and open it... again.

The Master of Death is a dangerous title; many would claim to hold a position greater than Death. Harry is pulled to Middle-earth by the Witch King of Angmar in an attempt to bring Morgoth back to Arda. A year later Angmar falls and Harry is freed. What will he do with the eternity granted to him? Story begins 1000 years before LotR. Eventual major canon divergence.

Harry Potter loves, and is loved by, his parents, his godfather, and his brother. He isn’t mistreated, abused, or neglected. So why is he a Dark Wizard? NonBWL!Harry. Not your typical Harry’s brother is the Boy Who Lived story.

After Voldemort's resurrection, Harry awakens to a cold stone floor. After years of toiling with a "reformed" dark wizard willing to aid his revenge, Harry escapes from Nurmengard and finds that the Wizarding world has changed...

Take a deep breath, count back from ten… and above all else – don't worry! It'll all be over soon. The world, that is. Yet for Harry Potter the end is just the beginning. Enemies close in on all sides, and Harry faces his greatest challenge of all - Time.

Five minutes pass before the neighbors decide to call triple nine; another ten before the fire-engine arrives. The Dursleys were dead long before that. Psychopath!Intelligent!Harry.

Harry had never been able to comprehend a sibling relationship before, but he always thought he'd be great at it. Until, as Master of Death, he's reborn one Turais Rigel Black, older brother to Sirius and Regulus. (Rebirth/time travel and Master of Death Harry)

When Petunia had to allow her hated nephew into her home, she'd expected troubles to arise sooner or later. Nothing though could have prepared her for the reality of what was to come. The boy sleeping under her roof, eating her food, wasting her money, was no normal child, oh no. It was an evil little demon hiding beneath innocent features. My take on psychopath/sociopath!Harry.

This story chronicles the rise of Harry Potter, the right hand of the Dark Lord Voldemort. Features a dark Harry in Slytherin, from pre-hogwarts to the end of the war. Harry knew nothing of the wizarding world until a teacher from a mysterious school visited him and told him the tale of his father, catapulting him into a world of intrigue, politics and Power.

Stabbed, late at night, in Hogsmeade Harry wakes up, face in the snow, in 1967. He isn't famous, he has no money, and no one has heard of Lord Voldemort. Becoming increasingly doubtful about the possibility of his return to the future he wonders if he may have to organise a little bit of a coup.

Auror Harry Potter has sociopathic tendencies, looks good in leather pants, and can't escape the life he's chosen. Enter Luna Lovegood. Multichapter, HarryLuna.