Saeris Fane
The new Queen of the Blood Court, Fisher's mate, and an Alchemist whose expanding runes give her power over quicksilver, fire, healing, brimstone, shields, and magical structures.
Kingfisher / Khydan Graystar Finvarra
Saeris's mate and the warrior of the Ajun Gate. The recovery of his true name frees him from Belikon's oaths and reveals a possible divine heritage.
Carrion Swift
Saeris's friend and Yvelia's hidden Daianthus heir. He returns to Zilvaren with Fisher and begins studying how to become a king.
Taladaius
Saeris's vampire maker and former lover of Everlayne. He becomes her adviser, orchestrates the violent purge of the Blood Court, and receives the god sword Tarsarinn.
Foley Briarstone
A former member of Fisher's Lupo Proelia turned into a vampire. He teaches Saeris Alchemy and becomes a protected Lord of Midnight.
Hayden Fane
Saeris's younger brother. Madra's propaganda has damaged his trust in Saeris, but he leaves Zilvaren and begins rebuilding their relationship.
Lorreth
Fisher's soul-bound friend and bearer of Avisiéth. He trains Saeris and helps coordinate the defense and evacuation of Cahlish.
Renfis
A Fae general bound by oath to Belikon. His disappearance leads to Ajun Sky, where he serves as a Knight of Orrithian.
Everlayne
Fisher's half-sister, still unconscious after Malcolm's abuse and enthrallment. Edina's spirit speaks through her early in the novel.
Edina
Fisher's dead mother and an oracle. Her spirit leaves Saeris a magical book and guides her toward the powers needed to survive.
King Belikon
Yvelia's treacherous ruler. He uses null blades, true-name magic, and oaths to control Fisher and the other Fae.
Queen Madra
Zilvaren's ruler and the architect of the feeder invasion. She has turned the city itself into a magical device for crossing worlds.
Iseabail
A witch who helps Taladaius purge the Blood Court and later attempts to locate Renfis and Fisher.
Danya
A formidable Fae warrior who challenges Saeris but remains fiercely loyal to Fisher.
Archer
A fire sprite whose brimstone blood reveals a possible cure for the rot.
The Hazrax
A dangerous supernatural being that trades one favor per year for residence at Saeris's court and grants her a rune capable of breaking magic.
Onyx
Saeris's fox companion. His death and resurrection demonstrate a new form of power inside Saeris.
Styx
The god who rules Diaxis and, according to Khydan, is his father.
Spoiler Warning and Content Note
The summaries below reveal the complete sequel. Brimstone contains explicit sexual content, graphic violence, blood drinking, gore, torture, coercion, mass death, suicide ideation, animal death, and threats of genocide.