Set at the start of book five. The ever-busy Dumbledore is a little delayed in sending that howler to Petunia, and so when Vernon insists that Harry needs to leave the house as he's clearly a danger to the family, Harry is packed and down the road with no protest, causing the blood wards to break. The Dursleys instantly become a vulnerable target for Death Eaters, and Harry himself is snatched by a Death Eater, but it's Severus Snape and this is coming from a Severitus writer so you've likely already figured out where all of this is going.

Takes Place: 5th summer, 5th Year - Snape flavour: Snape is Angry, Snape Comforts, Snape is Kind, Snape is Stern
Tags: Snape-meets-Dursleys
Categories: Parental Snape > Guardian Snape, Teacher Snape > Trusted Mentor Snape

After Harry accidentally deages himself to a baby during a Potions class, Severus is tasked with aging Harry back up to his correct age before any word gets out on Harry's condition. Severus is less than thrilled with the new job, and Harry is less than thrilled with his new caretaker. A novella, will contain mild CP. Set in the fifth year.

Takes Place: 5th Year - Snape flavour: Canon Snape
Tags: Deaged!Harry, Deaging
Categories: Parental Snape > Guardian Snape

In Harry's fifth year at Hogwarts, Dolores Umbridge, a Ministry of Magic representative, arrives as the new Defense Against the Dark Arts teacher. Cruelly tormenting Harry as part of her campaign to control the narrative about Voldemort's return, Umbridge escalates her punishment to casting the Unforgivable Cruciatus Curse. Harry endures the brutal torture, hiding his pain and torment from his classmates and friends. However, his teacher, Professor McGonagall, notices his struggle and calls him for a private discussion.

Takes Place: 5th Year - Snape flavour: Snape Comforts, Snape is Angry
Tags: Injured!Harry
Categories: Healer Snape, Teacher Snape > Professor Snape