Stories by OlegGunnarsson

A Harry Potter who grew up studying military tactics and strategy uses the attack on the Ministry as an opportunity to lay an ambush of his own - only to learn that his parents are still alive, as well as a twin brother whom Dumbledore calls the true boy-who-lived. And then, things get complicated. Military!Harry. A subversion of DZ2's Prodigal Son Challenge.

All his life, Harry Potter had heard voices inside his head. He never expected to learn that the voices were his own. Five different Harry Potters, from five different worlds, must work together to survive life, school, and the second war.

An extra-dimensional being sends a hero from their universe to King's Cross in September 1991, with the goal of helping young Harry Potter. Unfortunately, they aren't the only one who decides to intervene, and the sorting that night just keeps getting longer & longer. Chapter Five featuring Uatu the Watcher (MCU) and others.

During their journey into the vaults of Gringott's, on their way to Hufflepuff's Cup, Harry, Ron, and Hermione encounter a strange, otherworldly vault. When its occupant is freed, the entire balance of power changes. Takes place during DH, and follows the War of the Spark.

Harry Potter becomes annoyed with the Postwar Do-Nothing Wizengamot, and suggests that a monkey might be able to do the job. His familiar, a beautiful grey Adder, convinces him that a snake would do just as well. Thus, a legend is born, and the Wizarding World would never be the same. One-Shot.

After a disastrous first year class, Potions Professor Daphne Greengrass is visited by the godparent of one of her students - none other than Harry Potter. She knows that he somehow defeated the Dark Lord, and that he sits on the Board of Governors - and that he was once her betrothed. Unfortunately for her, their history goes much deeper than she could possibly imagine. One-shot.

Harry Potter and Nagini have returned to Potter Manor, each hoping to begin rebuilding their lives. But before they can do that, they must first figure out who they truly are. A follow-up to Inside Man and Inside Woman, updated sporadically.

A Death Eater traps Harry Potter and his girlfriend in an unwinnable scenario, but underestimates the lengths the Chosen One will go to protect the ones he loves. One-Shot. Trigger Warnings for Suicide and Torture.

After the war ends, George Weasley grows angrier and angrier as the former Death Eaters continue to kill with impunity. A chance encounter in London gives him the tools to respond in kind, and he becomes a man of focus and commitment in his pursuit of justice. Then, everything changes when a young witch buys the shop next to his.

Harry is always thrilled to see Griphook when he visits Gringott's. Unfortunately for Harry, things are not always as they seem... One-Shot.

Goblin Culture. The Director of Gringotts has one job - keep the Galleons flowing. It says so right there, in the oath. Sometimes, that job is harder than it seems. Trunkshopping!Harry, Wealthy!Harry. One-shot.

Albus Dumbledore decides to do everything he can to make sure that young Harry Potter enjoys his childhood. Things, as it turns out, get just a little bit out of hand. One-Shot.

Gendry Waters made his sprint back to the wall in record time. As it turns out, he may have had help... Takes Place after Episode 7x06 - Beyond the Wall. One-Shot.

Harry Potter found that the spells he was learning in books did not quite do the job. So he recruited the three smartest witches he knew and set them loose. The Wizarding World will never be the same. A collection of loosely connected one-shots focused on ridiculous spell ideas and the little-known dangers of fooling around with Magic.

Lily Potter has second thoughts about hiding her family in Godric's Hollow. The alternative she chooses turns out to be nothing short of brilliant. One-shot.

Professor Quirrell needs to find a Troll for that third floor corridor the Headmaster is setting up. Unfortunately, he's running out of time. No one will notice if he uses an Ogre instead, right?

Among the assets left behind by the Death Eaters, Harry Potter learns that he now owns the Chudley Cannons. And they need help getting back up and running after the war. Fortunately, Harry knows just the wizard for the job. What do you get when you mix Arithmancy and Quidditch? Hopefully, wins. (Post-War One-shot)

Lord Voldemort has fallen in battle against the Boy Who Lived. But unlike his first death, his corpse remains. So. What now?

Sergeant Fin Tutuola has a problem - three people are dead, overdosed on some new mystery drug that shouldn't exist. With no leads, little evidence, and no ideas, his only hope for solving the case comes in the form of a British Detective Inspector named Harry Potter. Rated T for Drugs, Canon-typical Crime Scenes, and Language. One-Shot.

Nagini resigned herself long ago to life as a snake. She never dreamed that she would have the chance to walk again - until she met a most unusual wizard.

As the casualties mount, and the Dominion War takes its toll, it's easy for Starfleet's doctors to become numb to the carnage. For one doctor, that ended with a ruined leg and a screaming Ferengi. Takes place after DS9 7x08 - The Siege of AR-558.

When one dragon falls in battle, his brothers are left to carry on alone. Dealing with the loss of their brother brings back memories they didn't know they had... Takes place Post-Season 7, originally posted at Ao3.

Death Eaters kidnap Cedric Diggory, the Triwizard Champion, to bring about the resurrection of their Dark Lord. Unfortunately, someone else has a different plan... Companion story to "Inside Woman"

The Minister of Magic is consulted about a most unusual Hogwarts letter...