Harry Potter and Undertale
Crossovers
The Spider Baker's Son by Gamer95 reviews
One of Muffet's spiders ends up hiding from a storm in Harry's cupboard, and she relays the news of his treatment to her boss. Muffet gets involved, and takes Harry away... Collab with SpeedGamerDTS
Rated: T - English - Family/Hurt/Comfort - Chapters: 2 - Words: 6,437 - Reviews: 95 - Favs: 548 - Follows: 542 - Updated: 6/11/2016 - Published: 5/27/2016 - Harry P., Muffet
Raven's Feathers by Midnathething reviews
One-Shots set in the Raventale universe. Chapter One: Asgore stared at the soul, brow creased in confusion. Where was the rest of it?
Rated: T - English - Humor/Adventure - Chapters: 1 - Words: 1,015 - Reviews: 1 - Favs: 16 - Follows: 14 - Published: 6/9/2016 - OC, Asgore D., Gaster
Half Plus Half Makes Two by Rikaeus reviews
We all know the story of the human who fell. What if that human actually decided to actively pursue an attempt to save Asriel? What if they reset over and over just to save him? On top of that, what if Frisk's actual name was Harry Potter? Frisk!is!Harry! Slash! AsrielxFrisk
Rated: M - English - Adventure/Romance - Chapters: 1 - Words: 6,250 - Reviews: 16 - Favs: 108 - Follows: 103 - Published: 5/28/2016 - [Harry P., Asriel] Sans
Gaster Sans? Swap Sans? How About Potter Sans? by Sea and Chaos reviews
During the final battle, Harry uses the last trick that was up his sleeve. Up for adoption to anyone how wants to make it a full story! Not a creative title, I know.
Rated: K+ - English - Chapters: 2 - Words: 746 - Reviews: 19 - Favs: 93 - Follows: 54 - Updated: 5/18/2016 - Published: 1/24/2016 - Harry P., Ron W., Papyrus, Sans - Complete
Worlds Away by BirchWitch reviews
Harry Potter is dead. When Sans decides to take up the mantle of older brother (AGAIN) and raise the tiny skeleton alongside a five-years old Papyrus, what could go wrong? Well except for the fact that he's only eight, and there happens to be an insane wizard out for his little bro's soul.
Rated: T - English - Family/Adventure - Chapters: 6 - Words: 4,851 - Reviews: 129 - Favs: 335 - Follows: 400 - Updated: 4/14/2016 - Published: 11/9/2015
Harry Potter and The Child of the Underground by myster emm reviews
One year after defeating Voldemort... One year after the barrier is broken... The meeting of two heroes fills you with DETERMINATION.
Rated: T - English - Chapters: 3 - Words: 2,269 - Reviews: 72 - Favs: 129 - Follows: 184 - Updated: 4/10/2016 - Published: 2/1/2016 - Harry P., Frisk
A Bruised Spirit by NRMania reviews
200X. Harriet Potter, Sister of the 'Boy-Who-Lived', is unable to use or see magic without help. So in order to make her family proud, she went underground to document all things about the monster species. It doesn't end too well for her, but now the barrier is broken... maybe what was left of her could make her family proud. (Alive Gaster, Female Harry, Alive Potters and WCHL.)
Rated: T - English - Supernatural/Family - Chapters: 1 - Words: 3,911 - Reviews: 29 - Favs: 149 - Follows: 154 - Published: 4/2/2016 - Harry P., Frisk, Gaster, Purple Soul
UNDERTALE: SCHOOL OF WIZARDRY by xFarahTalex reviews
Frisk goes to the wizarding school of hogwarts! Meeting many new friends and foes alike!
Rated: K+ - English - Adventure/Fantasy - Chapters: 1 - Words: 691 - Reviews: 9 - Favs: 2 - Follows: 2 - Published: 3/2/2016
The Unexpected Fear by Sea and Chaos reviews
When facing a bogart for the first time, things go a bit differently.
Rated: T - English - Chapters: 1 - Words: 438 - Reviews: 20 - Favs: 186 - Follows: 84 - Published: 2/19/2016 - Harry P., Chara - Complete
Get Dunked: Teaser by HybridTrash13 reviews
Sans has always been just a little bit off for someone who's just a skeleton monster...
Rated: T - English - Chapters: 1 - Words: 665 - Reviews: 11 - Favs: 65 - Follows: 53 - Published: 2/9/2016 - Harry P., Sans - Complete
Asriels Miracle by Scholar of the Dream reviews
Due to one minor change in the timeline, Asriel is saved. Sequel to HHDV
Rated: K+ - English - Drama/Fantasy - Chapters: 1 - Words: 1,209 - Reviews: 13 - Favs: 89 - Follows: 44 - Published: 1/20/2016 - Harry P., Frisk, Asriel, Sans - Complete
How Harry Dunked Voldemort by Scholar of the Dream reviews
Hogwarts has the cheat known as the room of requirement. Why didn't Harry use it to defeat Voldemort
Rated: T - English - Humor/Parody - Chapters: 1 - Words: 690 - Reviews: 36 - Favs: 215 - Follows: 93 - Published: 1/5/2016 - Harry P., Voldemort, Sans - Complete
Mettaton VS The Bark Lord by GigaBob reviews
Everyone's favourite magical ghost game-show-host glam-rock-star killer robot fights his most unlikely foe yet!
Rated: T - English - Drama/Supernatural - Chapters: 1 - Words: 2,398 - Reviews: 10 - Favs: 19 - Follows: 9 - Published: 12/29/2015 - Albus D., Undyne, Alphys, Mettaton Ex - Complete