best crossover fanfictions
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Summary
After the deaths of agent Henriksen and a bunch of other officials, the BAU is tasked with hunting down the Winchester brothers. When they catch them an interrogation ensues to learn more about the mysterious (and frankly confusing) duo. But instead of answers, more questions appear.
Things get even more complicated when a storm hits, power goes out, and the brothers get more and more agitated, warning of an incoming attack.
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Stiles has a good life. He has a great job, a great husband, and he's happy in Virginia. The pack is doing fine under Scott's leadership back in California. Aside from the grisly murder scenes he sees on cases, Stiles' life is actually pretty perfect. Which is of course, when everything goes wrong.
Basically Stiles is part of the BAU team, and the Nogitsune returns. Mind games ensue. There are not nearly enough crossovers where Stiles is on the team, so idk here you go, brought to you by the voices in my head. Also in this fic Stiles and Derek didn't get together until Stiles was well into college, because I think canon-era Stiles/Derek is really creepy.
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How to find good people by PepperonyOwl
Fandoms: Criminal Minds (US TV), Harry Potter - J. K. Rowling
26 Aug 2022
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Summary
Rose likes working in her cafe, helping people with the small things and being social without prolonged contact.
Then comes Dr. Spencer Reid, a man who is so absorbed in his books, he forgets to eat and drink - a man who reminds her of the friends she left behind when she came into this new world. He's someone she can help and he can help her, even if he doesn't know it.
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The BAU and The Demigod Agent by imtrappedinaphobiaofyou
Fandom: Criminal Minds (US TV), Percy Jackson and the Olympians & Related Fandoms - All Media Types, Percy Jackson and the Olympians - Rick Riordan, The Heroes of Olympus - Rick Riordan
16 Sep 2025
- Words:
- 33,115
- Works:
- 3
- Bookmarks:
- 317
Bookmarked by james_graves
22 Feb 2025
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Bookmarker's Notes
(as of august 2025, the BAU don’t know about Percy’s powers)
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Agent Jackson by Deerlie_03
Fandom: Criminal Minds (US TV), Percy Jackson and the Olympians & Related Fandoms - All Media Types, Percy Jackson and the Olympians - Rick Riordan
19 Aug 2025
- Words:
- 51,314
- Works:
- 2
- Bookmarks:
- 669