Mercury

* Unnamed Boys (At least two after Gabriel and one before Gabriel, Wards/Mercury Possessions)

## Appearances

### Portrayed by

* Kerry Fox (Briefly when **Mercury** took over Esmie's body with her permission)
* Christelle Elwin (Briefly when **Mercury** took over Ruby's body with her permission)
* Róisín Murphy (**Mercury** Herself)

### First Seen

* Episode 1 (Possessing Esmie's Body)
* Episode 2 (Possessing Ruby's Body) (Need to check)
* Episode 5 (Need to check)

### Last Seen

* Episode 8

Mercury is a powerful Blood Witch who keeps vials of (presumably) every Witch family’s blood in a large white room. All of them are catalogued by last name. She does this because she knows that if any Witch is desperate enough on their Giving Day, they will come to her for help and that makes the vials extremely valuable.

She is first contacted in the series by Nathan’s Grandmother (Esmie Byrne), in a moment of imminent danger, right after Nathan had beat up Soul O’Brien’s son (Niall O'Brien) at school. The Fairborn Council begins to surround Nathan’s house as his Gran brews a potion and inhales the smoke. Her eyes roll to the back of her head and then reappear, her pupils warped and it becomes clear that Mercury has possessed Gran. She offers Nathan help but he doesn’t know what he wants until she gives him a few suggestions, and the deal is that he has to come find her. He asks her how and she begins to slice an intricate pattern into his open palm with a knife that never heals over completely, instead it scars.

After that, she says she doubts he will make it but looks forward to seeing him.

Later, Mercury is seen possessing a woman in Paris to communicate with Gabriel after the woman inhales a potion’s smoke.

The next time she is onscreen is in her true form. Gabriel is seemingly alone at her place and takes the Byrne family blood vial when Mercury appears behind him, inquiring about Nathan’s location. When Gabriel asks if he can deliver the blood to Nathan, she says the deal was that Nathan had to come visit her himself. She denies Gabriel’s request, and then blows a yellow smoke into his face that makes him forget Nathan instantly. When he asks her what’s going on, Mercury tells him it’s just a vial of blood and then asks Gabriel to stay with her for a while because she misses him.

In a flashback of Gabriel’s, Mercury is shown to have been given Gabriel by his birth parents who can no longer keep him. They ask him not to forget them, but as soon as they’re gone, Mercury blows the same yellow smoke into Gabriel’s face and he forgets what they look like or what his relationship was to them.

When Mercury finds Gabriel as he is on his way to leaving her house a while after she asked him to stay, she asks him where he’s going and reminds him of her request. Gabriel tells her that he’s going to help a boy kill a wolf and she seems to understand instantly that he has regained his memory of Nathan. She shrieks in anger and begins to use her gift as she chases after him through her house, but he escapes just in time through a Cut under his bed left there by a previous tenant.

In the final scene that Mercury is present for, Jessica has jumped through a Cut on the lawn of the Wolfhagen mansion to the inside of Mercury’s house. Jessica asks Mercury if she can help fix her gift, which no longer works when she tries to shapeshift again in front of the other witch. Mercury tells Jessica that she can’t fix it. However, while Mercury likes to help people, she knows Jessica likes to hurt people, and she can help Jessica hurt the ones who broke it.

## Appearance

Mercury is unearthly ageless eerie looking woman. She has back length silvery with darker sections throughout her hair. She is pale with a tan that contrast with her unnaturally with her hair. She is medium height and wears flowing haute couture looking dresses. She rims her eyes with black to bring focus to the cold blue of her eyes. Mercury has prominent cheekbones and a gaunt looking face even with the agelessness.

## Powers & Abilities

### Basic Abilities

* **Spellcasting:** The act of changing and controlling events through the use of incantations and recitations.
* **Accelerated Healing:** The ability to heal at supernatural speeds. This ability is shared by both Fairborn Witches and Blood Witches but Blood Witches heal faster than Fairborn Witches.

### Individual Power

* **Umbrakinesis:** The power to create and manipulate darkness. Mercury's shadows were seen to have a decaying effect on the walls of her home. Whether this is apart of her umbrakinesis or another power entirely is currently unknown.
* **Shapeshifting (limited):** Mercury may have a limited form of shapeshifting as she was seen changing her eye color and growing her fingernails into long talons when she attacked Gabriel.