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

After getting sixteen year old Harry out of jail over the summer, Severus Snape must deal with a number of things, including: trying to maintain a relationship with his future wife, building a relationship with his future step-son, and trying to figure out the ever-changing enigma that is Harry Potter.

Takes Place: 6th summer, 6th Year, 7th summer - Snape flavour: Angry Snape, Canon Snape, Comforting Snape, Controlling Snape, Desperate Snape, Kind Snape, Loving Snape, Stern Snape
Tags: Adoption, Hospitalization, Incognito!Harry, Injured!Harry, Injured!Snape, Runaway, Sibling Addition, Snape-meets-Dursleys
Categories: Healer Snape, Teacher Snape > Professor Snape, Parental Snape > Guardian Snape

Marauders Era. Severus Glacier Snape was adopted at age 6 years old by Lady Hecate, the Goddess of Magic to raise as her own and to protect him from his abusive father. (He and Lily have been best friends since age 2). On a trip to Diagon Alley, Severus learns that he's the heir of Ravenclaw and Prince as well as Magic.

At Hogwarts, Severus reunites with his childhood friend, Lily Evans who is a sister to him in all but blood and bonds with Remus Lupin, a werewolf who wants friends but is scared of rejection.

Takes Place: 0 - Before Harry is born - Snape flavour: Comforting Snape, Kind Snape, Loving Snape, Out of Character Snape
Tags: Good!Voldemort, Gryffindor!Snape, Royalty!Snape, Sibling Addition, SuperPower! Snape
Categories: Big Brother Snape

Harry has always wished for someone to care, for a family of his own. On his birthday, he finds out that a certain Potions Master is his father, but Severus has finally settled into life with his other son. Can Harry finally have the family he has longed for, or will he always be the unwanted one?

Takes Place: 6th summer, 6th Year - Snape flavour: Angry Snape, Comforting Snape, Cruel Snape, Kind Snape, Loving Snape, Mean Snape, Overly-protective Snape, Stern Snape
Tags: Alternate Universe, Sibling Addition, Snape-meets-Dursleys
Categories: Parental Snape > Biological Father Snape

Sometimes, you just have to find a reason to celebrate.

Takes Place: 0 - Pre Hogwarts (before Harry is 11) - Snape flavour: Loving Snape
Tags: Alternate Universe, Sibling Addition
Categories: Parental Snape > Stepfather Snape