In a city created for and by magical creatures and mages, unknown to the public, many strange occurrences happen. Solving these is a detective and sorcerer, Rosella Cadwell. Ignorant of these is a powerful creature, Georgina Bidgood. Watching these is a powerful noble of the city's immortal elite, Blanchefleur Augure.

There are many stories of worlds where residents suddenly gain powers, or a secret portion of them possess it, or it existed in medieval times, or it's an alternate world from the very beginning, founded on different laws. However, this is not that kind of story. For many, many generations, people have had powers. It's unknown how long powers have been a thing, nor their source, but they exist. And those who excel in the use of these powers, as well as extreme geniuses of the mundane sort, attend a specific academy, Blackwood High. This is simply that kind of story, after all.