Deep in the Royal Library is a book. A terrible book that is said to send whoever reads it mad. A book so dangerous that it has to be hidden away and secured with chains to prevent it from ever being opened.

A book which has just been accidently checked out by Spike on behalf of Twilight Sparkle.

The Star In Yellow is rising once more, and only Rainbow Dash and Spike can save Twilight before it's too late. Ideas live forever. Ponies do not.

This fic is loosely inspired by the 19th century story 'The King In Yellow'.

Side Story to The Demesne of the Reluctant Twilight Sparkle

When Doctor Princess Twilight Sparkle got Ponyville and the surrounding lands as her exclusive demesne, she knew it meant changes and stuff. Glittering opportunities. Dire crises. Friendships gained and imperiled. The dawn of a new age for Ponyville. A renaissance of the arts and sciences. A great test of her abilities as a leader and as a friend.

The brewing civil war took her by surprise, on the other claw.

The Princesses and their allies in Canterlot are working to change the laws, disband the new militias and ensure a lasting peace, but they need time. Soon, this cold war of arms and intimidation will heat up, and all the laws and decrees in the world ain't stopping it.

Doctor Princess Twilight Sparkle will buy them time. She will do what it takes to keep her friends, her family, and yes, her demesne safe.

With the help of a handsome griffon security professional—that's me, by the way—a devious illusionist, a ruthless athlete, a bored noble, and a pair of boater-clad con-ponies, she'll stop the damn war herself if she has to.

Touch wood I'll live to tell about it...