Descent by Insanguinare
Summary: “She found herself flexing her fingers around her wand, willing herself to keep the promise she’d just made and trying to remember when she’d decided to break her most important one.” It takes Bellatrix eight years to go mad. Oneshot, 6,527 Words.
Why You Should Care: The backstory of Bellatrix intrigues me, quite frankly, and while my own personal canon will probably always include at its core the depth and twists of DeepDownSlytherin’s A Keen Observer, there is something here that delights me also. This Bellatrix has an inherent and unbridled lust for dark magic, much the same as Tom Riddle did when he was growing up. The two are not so much foils as parallels in this piece, and the interesting twist on the Cruciatus curse — while most probably not at all canon — makes for quite a lovely bit of final punctuation.
Why You Might Not Care: The ages of the Blacks have been muddled for those whose canon must include the ages on the Black Family Tree, but I tend not to care too much about that. The scene in which Sirius makes his grand exit is perhaps a touch too long; the focus begins to shift from Bellatrix to Sirius, and parts of what is supposed to be an intense conversation sounds a little too much like exposition. It is still quite strong overall, however.