"It is an undeniable, and may I say a fundamental quality of man, that when faced with extinction, every alternative is preferable." - Director Leonard Church of Project Freelancer.
Especially when it's the First Law of Thermodynamics. Sunset Shimmer talks the human Twilight into helping her exploit one of the more mysterious properties of the portal to Equestria.
Buffyverse crossover. Sunset/Twilight. In the months following the Friendship Games, the Wondercolts find themselves under investigation by a mysterious new student named Dawn Summers.