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Katrina plans to undone Serilda.

By the turn of Blood Moon, the ashes of your ancestry will be mine. Your flesh will be my flesh. I WILL LIVE AGAIN! NO! NOOOOOOO!
~ Serilda's last words spoken to the judge before her death (in Romani Greek)

Serilda of Abaddon is a one-shot villain of the TV show Sleepy Hollow and the main antagonist of its spin-off novel Sleepy Hollow: Children of the Revolution by Keith R.A. DeCandido.

She is a Greek witch She worked alongside Hessian soldiers in the Revolutionary War and was eventually burned at the stake. She thenturned into a zombie who collected ashes so that she can resurrect herself, after receiving assistance from Andy Brooks. She was originally the high priestess of the Order of the Blood Moon, a dark coven, but was ultimately undone by a good coven known as the Sisterhood of the Radiant Heart, which Katrina Crane led.

She is portrayed by Monique Ganderton (who also played an evil witch in Hansel & Gretel: Witch Hunters and served as the on-set stunt actress of Proxima Midnight in Avengers: Infinite War and Avengers: Endgame) as human form and by Roxy Olin as a mild-burning zombie.



Serilda was of Romany descent from Greece, and Ichabod Crane first encountered her back during the Revolutionary War when his regiment returned to their camp near Albany one evening during a blood moon, only to find it mysteriously destroyed, the soldiers there were slaughtered by being burnt to a crisp.

While inspecting the remains of the camp, Ichabod suddenly sensed a malevolent presence in the nearby woods, and saw Serilda, peering out from behind a tree looking at him.

He didn't know who or what Serilda was, only that the sight of her chilled his blood like nothing before. General George Washington believed that Serilda was a high priestess who was the founder and leader of a coven of evil witches who were allied to the British.

It was revealed that the Sisterhood of the Radiant Heart, the coven to which Katrina led, cast a spell using white magic which made Serilda vulnerable, resulting in her capture and subsequent execution by burning. While she was being burnt, she swore to return by taking the flesh of the descendants of the ones who condemned and executed her.

Season One

In the modern day, Andy Brooks, the minion of Moloch, Serilda's presumed master, uses a medallion given by the Demon to him to revive her. She plans to get the ashes of the descendants of the people who brought about her death to combine with her bones in a ritual in order to fully resurrect herself. She starts by going after Jeremy Steven Furth, the descendant of the magistrate who sentenced her to the stake. With Brooks's help, she attacks and fatally burns Furth in his car, and taking some of his burnt remains. She then takes the urn containing the ashes of the other last descendant of the magistrate and goes down to The Munition Tunnels beneath Sleepy Hollow where the remains of burnt witches and her bones were hidden away.

Ichabod and Abbie attempted to prevent the ritual, but failed and Serilda was able to fully revive herself. Ichabod had a pistol given to him by Abbie; however, he was unfamilar with modern firearms and drops it after one shot, which Serilda easily blocked. Serilda then tells them that it was Katrina who bound her powers, and was now imprisoned in the Purgatory ("World Between Worlds"). Before she was able to kill them, Ichabod threw a torch which landed on a nearby chest of gunpowder that was stored down in the tunnels, detonating it and bringing Serilda her second and final death.

Powers and Abilities

Being a high priestess, Serilda was a powerful witch and had an affinity for manipulating fire. As stated, Serilda was able to use her abilities to decimate an entire camp, reducing everything in her path to ash. She could also instantly set a car on fire, or catch point-blank bullets, reducing them to ash in the very pit of her hand. Despite being skilled with fire, she's been killed twice by it. She also displayed other abilities such as flight and teleporation. Even though Serilda was strong, it took a group of five witches to repress her power so she could be stopped.

  • Spell Casting: The act of changing and controlling events by magical influence.
  • Elemental Control: The act of controlling and manipulating the elements of air, earth, fire and water.
  • Necromancy: The act of controlling and manipulating of the dead.
  • Telekinesis: The act of controlling and manipulating the movements of objects and people.
  • Witches Brew: The act of brewing and concocting supernatural elixirs and potions that contain mystical properties.
  • Flight




  • No one was ever burned as a witch in America, or at least not in the British Colonies. In accordance with British laws concerning witchcraft, they were hanged, but no one was burned, and certainly not as late as the latter half of the 18th century. The last recorded execution of an American 'witch' was in 1692, nearly a century before the plot starts, and witchcraft had ceased to be a capital crime by 1715.
  • Crane identified "Abaddon" as a Greek word.
    • Abaddon is actually a Hebrew word ("Place of Desolation") that appears several times in the Old Testament. The Greek equivalent is Apollyon.
    • Ichabod says that the language Serilda speaks is "Romani Greek." While Romano-Greek is a mixed language of Romany and Greek, it is highly doubtful that he would understand much of it based on a knowledge of Ancient Greek alone.


           Sleepy Hollow logo.png|Villains

Headless Horseman

The Adventures of Ichabod and Mr. Toad: Headless Horseman
Sleepy Hollow (1999): Lady Van Tassel | Headless Horseman | Reverend Steenwyck
Headless Horseman (2007): Headless Horseman | Satan

Moloch | Henry Parrish | Hidden One | Malcolm Dreyfuss

Moloch's Servants & Horsemen
Ancitif | Andy Brooks | Demons | Four Horsemen of the Apocalypse | Conquest | Headless Horseman | Famine | Hessians (Gunthur) | War | Headless Horseman's Head | Gina Lambert | Lilith the Succubus | Order of the Blood Moon | Pied Piper | Serilda of Abaddon | Tree Monster

British Army
Abraham von Brunt | Banastre Tarleton | Benedict Arnold | William Howe

Hidden One's Servants
Pandora | Kindred

Dreyfuss Enterprises
Abraham von Brunt | Logan MacDonald | Helen Donovan | Jobe

Atticus Nevins | Carmilla Pines | The Devil | Evil Frank Irving | Golem | James Colby | Katrina Crane | Leena Reyes | Mary Wells | Orion | Ro'kenhronteys | Solomon Kent | The Four Who Speak As One