Order of the Blood Moon (LOTM: Witnesses of Sleepy Hollow)

The Order of the Blood Moon, also known as Abaddon, was a dark coven, a group of evil witches that served Moloch. Their high priestess was Serilda of Abaddon 250 years ago, and rivals of Katrina Crane's coven, the Sisterhood of the Radiant Heart. They practiced black magic for malevolent purposes.

In LOTM: Witnesses of Sleepy Hollow - The Cranes Arc, the members of the coven (aside from Serilda) are unseen supoorting antagonists, but in LOTM: Witnesses of Sleepy Hollow & Sword of Kings Crossover - The Corbin Files, the coven served as a secondary antagonistic faction in 2013 storyline after Serilda was revived. They also have major role in the upcoming premiere of LOTM: Witnesses of Sleepy Hollow - Death Arc.

LOTM: Witnesses of Sleepy Hollow - The Cranes Arc
From 1712 to 1816, over a hundred witches of the Order were executed in Sleepy Hollow. They were then buried in the munition tunnels. During the Revolutionary War, the Order under Serilda had alligned with British. In that time they had attacked a camp near Albany, New York, leaving burnt corpses for the 37th Regiment. However, the Order then lost their high priestess Serilda when the leader of the Sisterhood of the Radiant Heart, Katrina Crane weakened her powers. Serilda was then burned at stake by Magistrate Robert Daniel Furth. Before dying, she vowed that the ashes of Furth's descendants would bring about her return.

After that, the coven was taken over by Lady Van Tassel and therefore the Blood Moon Wicked Pendant became a possession of hers, but eventually the coven falls apart 24 years later after Lady Van Tassel was imprisoned. Later, Michael Langdon found Moloch and gained the pendant after gaining Moloch's trust.

LOTM: Witnesses of Sleepy Hollow & Sword of Kings Crossover - The Corbin Files
In 2013, Michael forced Misogi Kumagawa to bring Serilda back to life, and with the pendant, Michael controlled Serilda and her coven himself. Serilda then collected the ashes of Furth's descendants, Jeremy Furth and the last Hemmington. She was able to return to her full form to revive the Horseman of Death (indirectly bringing Ichabod back to life), but she was then obliterated by Ichabod Crane and Police Lieutnentant Abbie Mills.

LOTM: Witnesses of Sleepy Hollow - Death Arc
However, the power of Serilda had later became a part of Michael after he fused with the Blood Moon Wicked, making him the de facto new High Priest of Blood Moon. Furthermore, the explosion scattered her and other witches ashes into a part of the Hudson River affecting people such Vivian Apfel, Hannah Schneider, and people at the Harvest Festival. They were possessed by the Order's witches. Luckily, Crane was able to clean the ashes off the people using a lightning to purge the people in the Hudson.

Known members
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 * Serilda (1st High Priestess; destroyed)
 * Lady Van Tassel (2nd High Priestess; imprisoned)
 * Michael Langdon (de facto High Priest)
 * Colin van Bilj (deceased)
 * Vivian Apfel (possessed; freed)