The Undercroft. Reader x Sebastiansallow
- Reads 1,877
- Votes 68
- Parts 56
Views 18 years and above this story not hundred percent accurate to the original story line of hogwarts legacy, characters are of age, and the story has taken a massive turn around to its originality please be advised that I am not the best writer or have the great grammar so please be patient
if you have or know anyone who is at risk of suicide or has suicidal thoughts please seek help from your local health care department or call the suicide hotline.
If you have any Phobias that include, details of the Deceased have issues with blood or Descriptions of gore I advise against reading this.
Suicide warnings
Gore warnings
Spoils to the game Hogwarts legacy
Sexual fantasy warning
And language warning
There will not no warning throughout the story of when theses moments will occur so you read at your own risk
Please enjoy
All Rights Reserved
Join the largest storytelling communityGet personalized story recommendations, save your favourites to your library, and comment and vote to grow your community.
You may also like
The Pages We Wrote | Sebastian Sallow
10 years after the defeat of Ranrok, y/n is still struggling with the nightmares from the events. She is now the Defense Against the Dark Arts professor at Hogwarts and has a simple life with some friends from Hogwarts. Sebastian Sallow has gone on to become an Auror, travelling a lot and has not seen y/n in years nor kept in touch. The two run into each other one night while preparing to deal with an incident happening near Hogwarts. They have to work together to deal with the threat to the area while also rediscovering their once hidden feelings for one another. This is a Sebastian Sallow x Reader fanfic. Simply use your first name when it says Y/N and your last name when it says Y/L/N. This fan fiction will contain mature content. There will be a warning at the beginning each chapter. Mature content refers to physical or verbal abuse, intimate moments, alcohol use, and other content specifically meant for older ages. Please adhere to the warnings at the beginning of the chapters and do not proceed if the content should make you uncomfortable in any way. The warnings of the mature content will contain an emoji depending on the issues. 🍺 = Alcohol 🔥 = Smut 🫥 = Violence (Verbal/Physical/or Fighting) I will also have a + symbol next to the chapter name for any smut scenes to give a pre warning so you know what chapters will have it. I will continue to update the warning emoji system as needed as the story progresses. Thank you for taking the time to read this! I do not own the rights to any of the characters from the video game Hogwarts Legacy. I do not own the rights to any of the places mentioned in the story that belong to the Harry Potter world.Complete
Those damn brown eyes: A Hogwarts Legacy story
*All characters have been aged up to 18-20 years old* Y/N Had a very interesting first year at Hogwarts, from finding secret scriptoriums, and going to Azkaban, to defeating Ranrock. You're returning back to Hogwarts for your sixth year, and everything is different.. ~Chapters with * beside the name have mature content. ~ If you are just here for Seb X Y/N Undercroft Denial 🫣 #7 in main character death! Holy shit thank you guys so much!Complete
The Cost of Saving You
Ancient magic stirs, twisting loyalty, love, and fear into a deadly ritual none of them understand. Sebastian, Ominis, and You must unravel its secrets before it turns their greatest strengths into the very thing that destroys them. No use of Y/N or MC. [Update 11.27.25 - Updated the book cover to fit the gothic Victorian aesthetic] [Update 02.07.26 - Now cross-posted in AO3!] Disclaimer: This is a work of fanfiction inspired by the Harry Potter/Hogwarts Legacy universe. All original characters, settings, and concepts belong to J.K. Rowling and the respective rights holders. This story is purely transformative and non-commercial.Complete
The Heartbreak Prince Sebastian Sallow
It's been a year since I finally defeated Ranrok. I thought I would have everything I ever wanted after the fight was over. But the problem was instead of winning, I lost everything. Sebastian distanced himself from me, Ominis started to stray away, people started to look at me differently. All I want is for Sebastian to notice me and know my secret, know my goals, know me for me. No matter what happens there is only one thing true that nobody will know except for me for now, is that I am completely and utterly in love with him. SPOILER WARNING: Will contain major spoilers from the Hogwarts Legacy game. Will contain mature and explicit scenes, including with violence, romance, mentions of abuse, torture and death. Please read at your own risk! I do not own anything Hogwarts Legacy, Wizarding World or by Warner brothers. All rights to them..... my characters/ story are owned by me. Scenes and occasional quotes taken from the game but I added my own additions.Complete
To my Roommate, Draco Malfoy
Platinum Blonde hair, aristocratic features, cold hands gripping her thighs, sweet nothings, vulgar words and moonlit eyes showing how badly he would be damned for her. Annalise wanted all of it. She never wanted anything this bad. She never asked for anything than to wake up with him every morning. She never expected to fall for her nemesis. She never expected to fall for someone who's afraid of falling. She never expected to fall for a boy with traumas. She never expected to fall for the boy who had hurt her. She never expected to fall for her roommate. But she did. And now it's fucking her up. ◆ Warning: Matured Content, suitable for readers above the age of 17. It includes harassment and vulgar use of words, I suggest you read it at your own risk.Complete
Sub Rosa
A story made of vows, duty, old debts, and the quiet war between mercy and guilt. In the Gaunt family, secrecy is an heirloom - and no secret stays buried for long. When they discover Dominique Novell's link to ancient magic, they decide to bind her to their bloodline. A marriage is arranged and for Dominique, the choice is no choice at all. The Gaunts hold leverage - omniscient of Sebastian's sin. To protect him, she signs her name. Now bound by law and silence, she must navigate a marriage written in clauses and consequence - one that blurs the boundary between protection and possession, mercy and guilt, duty and love. ⚠️ Content warnings and disclaimers: - this story contains spoilers for the game Hogwarts Legacy - I do not own the characters, world setting, places and names of the Hogwarts Legacy - and Wizarding World universe - chapters with explicit content will be marked with a 🌶. please consume at your own responsibility - I'm an ESL writer. I do my best proof-reading, but be prepared for possible errors.
The Badger and the Snake: A Sebastian Sallow x reader
As the reader a hufflepuff and Sebastian try to understand and navigate new found feelings for each other that grow in intensity. Sebastian also struggled to suppress a dark side of himself that he unleashed his 5th year. It revolves around 2 POVS. You as the reader and inside Sebastians head as well. It does have very heavy spicy moments but also fluff as well. Its story based and my Interpretation of future evens following the game and Sebastians quest line. This story line takes place in 7th year of Hogwarts legacy 2 years after the battle with ranrok to be able to age up characters as well as to not have to retell the game. (Clearly we chose not to turn him in since he is not expelled.) though you all still worry what he is capable of. *TRIGGER WARNINGS* Detailed sexual content Abandonment Teen Pregnancy scare This is my first go at fan fiction but I truly love creative writing. I will put warnings at the top of pages containing explicit content. Thank you everyone enjoy I can't wait for feedback ❤️Complete
The Light in the Dark | Neville Longbottom
"𝐓𝐡𝐞 𝐰𝐨𝐫𝐥𝐝 𝐢𝐬𝐧'𝐭 𝐬𝐩𝐥𝐢𝐭 𝐢𝐧𝐭𝐨 𝐠𝐨𝐨𝐝 𝐩𝐞𝐨𝐩𝐥𝐞 𝐚𝐧𝐝 𝐝𝐞𝐚𝐭𝐡𝐞𝐚𝐭𝐞𝐫𝐬. 𝐖𝐞'𝐯𝐞 𝐚𝐥𝐥 𝐠𝐨𝐭 𝐛𝐨𝐭𝐡 𝐥𝐢𝐠𝐡𝐭 𝐚𝐧𝐝 𝐝𝐚𝐫𝐤 𝐢𝐧𝐬𝐢𝐝𝐞 𝐨𝐟 𝐮𝐬. 𝐖𝐡𝐚𝐭 𝐦𝐚𝐭𝐭𝐞𝐫𝐬 𝐢𝐬 𝐭𝐡𝐞 𝐩𝐚𝐫𝐭 𝐰𝐞 𝐜𝐡𝐨𝐨𝐬𝐞 𝐭𝐨 𝐚𝐜𝐭 𝐨𝐧. 𝐓𝐡𝐚𝐭'𝐬 𝐰𝐡𝐨 𝐰𝐞 𝐫𝐞𝐚𝐥𝐥𝐲 𝐚𝐫𝐞." ☾ ⋆*･ﾟ:⋆*･ﾟ:⠀ *⋆.*:･ﾟ .: ⋆*･ﾟ: .⋆ Dawn Malfoy was just like every other wizard her age. She grew up in a normal home with a normal family, was well-liked by her peers, and received good marks in school. One would've described Dawn's life as perfect until the end of her fourth year. That one tragic accident marked the beginning of her demise... when her life changed forever. ☾ ⋆*･ﾟ:⋆*･ﾟ:⠀ *⋆.*:･ﾟ .: ⋆*･ﾟ: .⋆ This is a Neville Longbottom x OC story (although most of the story doesn't revolve around their relationship) THIS STORY IS RATED MATURE FOR A REASON! CWs (Content Warnings) and Disclaimers are placed at the beginning of each chapter for reader discretion. Please do not read if you are uncomfortable with... → Violent Acts & Descriptions → Sexual Content (Consensual & Nonconsensual) → Emotional & Physical Abuse → Suicide → Death ☾ ⋆*･ﾟ:⋆*･ﾟ:⠀ *⋆.*:･ﾟ .: ⋆*･ﾟ: .⋆ Started: 10/23/20 Finished: 12/14/23Complete
10 years after the defeat of Ranrok, y/n is still struggling with the nightmares from the events. She is now the Defense Against the Dark Arts professor at Hogwarts and has a simple life with some friends from Hogwarts. Sebastian Sallow has gone on to become an Auror, travelling a lot and has not seen y/n in years nor kept in touch. The two run into each other one night while preparing to deal with an incident happening near Hogwarts. They have to work together to deal with the threat to the area while also rediscovering their once hidden feelings for one another. This is a Sebastian Sallow x Reader fanfic. Simply use your first name when it says Y/N and your last name when it says Y/L/N. This fan fiction will contain mature content. There will be a warning at the beginning each chapter. Mature content refers to physical or verbal abuse, intimate moments, alcohol use, and other content specifically meant for older ages. Please adhere to the warnings at the beginning of the chapters and do not proceed if the content should make you uncomfortable in any way. The warnings of the mature content will contain an emoji depending on the issues. 🍺 = Alcohol 🔥 = Smut 🫥 = Violence (Verbal/Physical/or Fighting) I will also have a + symbol next to the chapter name for any smut scenes to give a pre warning so you know what chapters will have it. I will continue to update the warning emoji system as needed as the story progresses. Thank you for taking the time to read this! I do not own the rights to any of the characters from the video game Hogwarts Legacy. I do not own the rights to any of the places mentioned in the story that belong to the Harry Potter world.
More detailsContent Guidelines