Harry is not only the son of Remus and Lily from a one-night stand but also a werewolf. When Voldemort comes to attack the prophesied children (Cedar Potter or Neville Longbottom), Snape arrives beforehand and tries to warn Lily and James about the Dark Lord's arrival. Instead, he meets Augusta and Remus, the Potters and Longbottoms having gone out for an evening to themselves. Before they can be killed, a portal opens as a result of a kitsune playing around with magic and seeing an opportunity, Snape forces Lupin, his litter of pups and the prophesied children into the portal. As it closes behind him, Snape turns to face Voldemort moments later and is sentenced to Azkaban but no trace of Remus or the children is found. When Remus comes to, he realizes they are on a completely different world in a different solar system where Remus must learn to accept not only his wolf, but learn how to be a father and guardian while searching for a way to return to his own world.

Takes Place: 0 - Pre Hogwarts (before Harry is 11), 1st summer before Hogwarts, 1st Year - Snape flavour: Overly-protective Snape, Stern Snape
Tags: Alternate Universe, Baby fic, Child fic, Crossover, Sibling Addition, SuperPower! Harry, SuperPower! Snape, Vampire!Snape, Vampires, Werewolf!Harry, Werewolves
Categories: Parental Snape > Guardian Snape

Seventeen years ago, Harry Potter went missing during the disastrous Triwizard Tournament. Voldemort managed to resurrect himself and the war has begun again, yet without a light to follow, the world has become a different place. For seventeen years, the leader of the light has clung onto the hope that their savior is alive somewhere and sends out Severus to find him. As Severus searches for a lost savior, he happens upon a traveling carnival by chance but their savior is not human anymore and may not want to leave the family he gained or to a war he wanted no part in.

Takes Place: 4th Year, 8 - Pre Epilogue (adult Harry) - Snape flavour: Canon Snape
Tags: Addicted!Harry, Animagus!Snape, Creature!fic, Kidnapped!Harry, Sibling Addition, Spying on Harry! Snape, SuperPower! Harry
Categories: Snape Equal Status to Harry > Comrades Snape and Harry

During the 19th century London, Harry Potter falls down the chimney of the apothecary of one Professor Severus Snape; bringing with him dire inconveniences.

But not every family is found in blood, and not every story follows the same path. For Harry, Snape and Draco, the truth has never been harsher.

A Severitus AU, one without magic. A/N: Slow edits.

Takes Place: 3rd summer, 3rd Year - Snape flavour: Comforting Snape, Controlling Snape, Depressed Snape, Loving Snape, Overly-protective Snape, Secretive Snape
Tags: Adoption, Alternate Universe, Hospitalization, Injured!Harry, Physical Impairment, Sibling Addition
Categories: Healer Snape, Master Snape > Apprentice Harry, Teacher Snape > Professor Snape, Parental Snape > Guardian Snape

Draco, Severus, and Remus receive some exciting news about their family.

Takes Place: 0 - Before Harry is born, 0 - Pre Hogwarts (before Harry is 11) - Snape flavour: Kind Snape, Loving Snape, Out of Character Snape
Tags: Animagus!Snape, Baby fic, Girl!Harry, Good!Voldemort, Pregnancy, Sibling Addition
Categories: Parental Snape > Biological Father Snape, Parental Snape > Biological Father Snape > Severitus Challenge

Snape has become a father to Harry, and here comes Draco-his new brother. How will the two get along? How will the boys cope with their new way of life?

Takes Place: 4th summer, 4th Year - Snape flavour: Out of Character Snape, Overly-protective Snape, Secretive Snape, Stern Snape
Tags: Adoption, Sibling Addition
Categories: Parental Snape > Guardian Snape