When King Joffrey dies to poison, Sansa Stark flees from the scene, with the help of Dontos the jester...
... but her attempt at eloping is intercepted. Dontos is killed, while Sansa is captured alive and imprisoned in the castle's dungeons. That very night Jaime Lannister helps Tyrion, his brother and Sansa's husband, escape. He does not wait for a trial, fearing that Sansa may confess and implicate his little brother. On his way out, Tyrion kills Tywin, his father and the true power in Westeros. Cersei, furious and with no one left to keep her in check, decides to vent her anger on Sansa and swears to make the young Stark confess. With any mean necessary.
A few words of advice:
1) This alternate GoT history is, of course, based on the work of Quoom. I picked intentionally one of his oldest series, which is now easily found on the web, in order not to go against property issues, and I will anyway use only a small percentage of the hundreds of pics the original series is composed of. Anyway, if you are the legal owner of those pics, I will remove them.
2) As said, all artistic merit goes to Quoom, whose work stays impressive even after twenty years. I'm sure he would have approved and, if it's true as we fear that he is no longer among us, I hope he benevolently smiles down on this little dabbling I did from the great torture dungeon in the sky.
3) Needless to say, Sansa Stark, a fictional character, is 18+ in this alternate timeline.
4) In case you don't like the results, complain to @wulf who encouraged me
So here we go... Sansa has been locked in her cell, unaware of the death of Tywin, the escape of Tyrion, and the wrath of Cersei looming over her...