Calistaborgin
The third year opens under a deceptive light.
At Hogwarts, the corridors hum with rumours about Sirius Black, but for Calista Borgine, the threat lies elsewhere : in the veins of ancient magic, awakening more violently than ever before.
After the Rackham Key and the Rookwood Mirror, a new artefact forces itself upon her : the Mist Lamp, forged by the Keeper Fitzgerald.
An object capable of unearthing truths no one had dared face - and whose echo strikes Calista to the core. Alongside Theodore Nott, whose unwavering loyalty makes him her anchor, and then Blaise, who in turn discovers the full extent of the secret, Calista plunges into a labyrinth of visions, runes and revelations.
Without, Harry confronts the mystery of the Shrieking Shack ; within, Calista confronts that of her own destiny.
But when a forgotten enemy escapes from Azkaban and the Lamp reveals a cry that history had erased, the boundaries between justice and power begin to blur - whilst ancient magic, capricious as ever, demands its price.
Some truths illuminate, whilst others burn.
And this year, Calista must learn to walk between the two.