A Butterfly Effect/YMMV


 * Angst What Angst: Taken Up to Eleven. While there is plenty of angsting going on, for the level of trauma the main characters endure, they are astonishingly psychologically healthy.
 * Complete Monster: After what Quirrell does to Lavender and tries to do to Harriet he qualifies as one.
 * Darker and Edgier / Bloodier and Gorier: Harry suffers from some really serious abuse in the first 2 books and gets starved to death once. It also contains a significant amount of (sometimes graphic) violence like decapitation, torture and rape.
 * Moe: Harriet displays many traits of this often, not that she isn't extremely scary or furious when hurt, pushed too far, or cut off from very needed love and acceptance. Overall, it's done very well and a realistic aspect of her character--one that is not omnipresent.
 * Original Flavor: Subverted. It feels like this...at first. Then Sly Goddess puts the characters through the wringer...and doesn't stop. Oh, and all of the characters are way more sexual than in canon. Also, magic behaves differently (and is capable of far, far more) than in canon.
 * What Do You Mean It's Not for Kids?: The 'Mature' warnings on Harry Potter fics are often taken for granted. "It's Harry Potter! How bad can it possibly be, right?" WRONG! Honestly...A Butterfly Effect is rated M for a reason. Don't be shocked by what you read, because the author gives you plenty of fair warning.