Ancient magical artifacts and untested spells really shouldn't mix. After a misfired spell on Star Swirl's Mirror ends in Twilight, Sunset, and Spike trapped in a foreign universe, they must find a way back to Equestria.

What’s an immortal to do at the end of everything?

A cosmic coincidence and a unique interaction of gravikinetic quirks send eight hero students to Equestria. How might they adapt, and can they even hope to get home?