The Summer Sun Celebration turns horrific when Princess Celestia is shot by a hired sniper. With the leader of Equestria hospitalized, Princess Twilight and her friends find the whole country balancing on a razor's edge. Fear rules the city of Canterlot, and a future without Celestia is dark and frightening to behold.

Meanwhile, Phillip Finder attempts to find more information on the hired sniper, only to find out that there is far more to this than the attempted killing of the Princess...something far more terrifying...

The Phillip Finder series
The Pony in the Gray Trilby
The Everfree Forest Affair
Time Flies
The Blue Moon Brings Death
Letters to a Candymare
The Face in the Darkness
Checkmate
Secret of the Mare Lisa
The Sun Falls
Clockwork
Behind Locked Doors
Siege of Clovenworth
The Silent Fugitive
Curse of the Taverneigh Blue
Mystery on the Mareish Moors
The Grilled Cheese and the Muletese Falcon
Trifle Not With Monsters
The Fillydelphia Solution
The Sydneigh Ritual
Endgame