The Legacy of the Dark Knight by Shamrock Holmes [ - ]
Summary: In a world where Harry Potter gained allies before attending Hogwarts, a modern heroic tradition dating back over half-a-century and tying into a line dating back to before the founding of Hogwarts leads to a very different Second War against Voldemort. Crossover with DC Comics' Justice League and Young Justice (2010).
Categories: Alternate Universe
Characters: Harry/Ginny, Remus Lupin, Sirius Black
Genres: Action/Adventure, Crossover, General
Warnings: Death, Disturbing Imagery, Extreme Language, Violence