In a dark, cold place bored into the core of Mount Canterhorn, a God is being born. Twilight Sparkle, the Solarian Union's most gifted mind, is overseeing its birth. When the Tower is complete, it will unite the Union and the world, overseeing infastructure, communication, automation of every kind. It is the ultimate marriage of science and magic, and the great work which will usher in a new age.

Twilight watches her creation taking shape in the void, and loses herself in its terrifying mystery. The God they are bringing into Being is not the mere machine they set out to build.