Two years after Equestria began its slow collision with Earth's universe, an opportunity to survive the barrier has been developed by the combined efforts of humanity and ponies: conversion. With conversion serum, or potion, a human can become a pony and survive the barrier that is slowly consuming the earth. However, Princess Celestia is all too aware that there are things other than life which humans value, and would reject conversion for. That is why she has summoned Twilight Sparkle to Canterlot to begin a daunting task in order to preserve humanity even further.
Written for the TCB group's Event XIII.
Set in Guardian_Gryphon's Gammaverse
Prequel to the story The Conversion Bureau: The First Choice