AU of the Season 4 finale, Twilight's Kingdom. Tirek tortures the three princesses in an attempt to learn the whereabouts of their magic. The most unlikely hero comes to their rescue, the Draconequus lord of chaos. Will a powerless and weak Discord be able to save the pony he has always loved?
Warnings: Major character death and gore (shouldn't be too explicit)
Update: I will be adding an Alternate Ending to this in which Discord does not die as well as a chapter studying how his death affects the Mane Six.