looking for (completed) adult Harry/big three fics with more extensive magical theory
I'm a total fic novice, having just stumbled across "The Boys From Bulgaria" by LongLight06 on AO3. I loved how the author continued to push the ideas of magic into more practical uses, and I can't wait until this work is completed. Are there any other recommendations for similar stories?
I also read A Portrait Through Time by Purebloodgoddess and loved it as well.
I guess i'm looking for more high-level reimaginings that are more adventure, mystery, or drama focused, without emphasizing random romantic pairings just for fun.
(edited to add links)