Based upon the Divine Comedy; "Dante's Inferno", Twilight must descend into Hell to save Spike. With the powers to damn those who she meets, or to absolve them; she must forgive her friends' sins, and Celestia must forgive her, for committing every one of them.

But above all; she must save Spike's innocence.

The Seven Destructive Friendship Sins: Dishonesty, Distrust, Selfishness, Begrudging, Blame, Insurrection, and Disband.

The artist of the picture: http://mangaka-girl.deviantart.com/

Twilight Sparkle is a gifted student and scholar. When she attempts to harness her creative side by writing a science-themed sensual romance novel, however, things rapidly get out of hoof. Can her friends stage an intervention before she humiliates herself (and them) at a prestigious literature recital?

No. No, they cannot.