Prologue - Friendship

So what happens if Barry can't get back at the end of the first Supergirl crossover? Then what would happen of being that close to Fort Rozz during Myriad made some... changes to Kara's brain? Enough to turn her completely... evil...

To answer a frequently asked question, this is a romantic Superflash story. It might take a while, but there will be Superflash as a couple by the end.