Due to the different way time worked in Faerie, Ash had aged to around thirteen mortal years of age by 2012. At one point, he was taken from his mother by the Unseelie King and taken to his Court. With his royal faerie blood, his Shadowhunter blood, and demon blood, the King saw in him a potential to be a weapon against the Nephilim. The King primed him with his blood and spells into being what he had envisioned for his First Heir. The King also took a bit of his blood, taken from a cut he made on his throat, and wore it around his neck to draw power from.
His mother often bargained with the King for his return.
Ash was in the weapons room when a girl, whom he would later learn was Drusilla, appeared out of nowhere. The sight of the stranger made him wary, and he reached for his dagger and demanded that she identify herself, asking if she was a Shadowhunter. When Dru called him out for being rude, he told her his name but continued to interrogate her, immediately asking if she had been sent by his mother and if she was worried about him. Their conversation was cut short when Dru was pulled back to the mortal realm.
As part of the magic the King had woven into him, Ash had an effect on people that made them want to follow and protect him. This affected Annabel Blackthorn immensely and the woman clung to him as his guardian in the Unseelie Court, using the King's desire for the Black Volume of the Dead in her possession as a bargaining chip. The King planned to utilize spells in the book to imbue Ash with powers, some of which would weaken the Shadowhunters more than Thule's blight. Ash was also aware of his father's history with the Nephilim, so when Emma Carstairs and Julian Blackthorn came claiming to rescue him, he resisted.
When the Shadowhunters and one of the King's sons, Kieran, were captured, the King ordered Ash to execute Kieran. Ash asked for a reason, and the King only supplied that he needed to spill royal blood as soon as possible, so that the magic of the Dark Artifices could start its work on him while he was still young. Ash hesitated but was urged on by the King, but before he could try, his mother arrived. Annabel, desperate to protect him and keep him away from their power-hungry plots, took him through the Portal leading to Thule.
Annabel went straight to Thule's Sebastian with Ash, hoping he would protect them there, in the world where Sebastian had won the Dark War, with the pair arriving at Thule around two years after the war. It worked for at least five years. Sebastian kept his son around, teaching him his cruel ways, and Ash passively watched Sebastian wreak havoc on what was left of the world.
Although Sebastian was initially pleased at the thought of having a son, and played with Ash, he eventually lost patience with the boy and at some point in his training, when Ash made a mistake, attempted to punish him with a whip. The Jace of Thule intervened on Ash's behalf and managed to convince Sebastian to let his general train his son. Ash promised to impress him, and during the course of his training grew attached to Jace, which angered Sebastian. At one point, Sebastian had Ash thrown into a pit of demons to gauge his skill. During the fight Ash's wings manifested; according to Sebastian, they were the wings of a fallen angel and had always been in him, but had been drawn out by Thule.
Eventually, however, when Ash looked around seventeen, Annabel realized that Sebastian was growing weak. She feared that Sebastian would someday turn on them and kill Ash to regain his strength, and thus made a deal with Julian and Emma to save Ash.
By this point Jace had also realized that Sebastian was a danger to Ash, and had previously attempted to warn him to run, in defiance of the bond he shared Sebastian. Although unable to directly tell Ash that Sebastian wanted to hurt him, Ash understood what he was trying to say: that his father would soon kill him. The next time he was with Sebastian, though he pretended to be indifferent as usual, Jace realized that Ash genuinely hated him now.
Some time later at a nightclub base, Psychopomp, used by his father, Ash found a drawing of Drusilla left behind by the Julian Blackthorn from his world and, curious about the girl, kept it for himself.
Ash was with Sebastian when he and his army confronted the rebels outside the Silent City. He silently signaled to Emma and Julian that Annabel had not betrayed them. When a battle broke out, Ash was held at gunpoint by a rebel, the werewolf Bat, and simply convinced the rebel with his words to let him go. Acknowledging that Sebastian did intend to kill him someday, Ash joined the battle in his winged form, struck Sebastian and, with a command, disarmed him, allowing Emma to kill him with the Mortal Sword, adding that he did it because he liked what she told Sebastian about their world's Clary Fairchild. Annabel tried to pull him through the Portal back to their world but Ash, even later when Emma and Julian called for him, refused to leave Jace.
After his return to the Seelie Court, the Seelie Queen became concerned for his safety within her court and sent him to live in a house on a cliff, a hundred leagues from both the Seelie and Unseelie Court. In an effort to make Jace, now called Janus, feel better about their new home Ash asked his mother for a piano for him, but was disappointed when Janus refused to touch it.
In 2013, Ash was caught by Janus studying the picture of Dru he had taken from Thule. Dismissing his queries about the paper, Ash noted the blood on Janus's hands from people he had killed in the New York Shadow Market, and expressed his concern over his friend's wellbeing, stating that he'd thought Janus would get better. Ash became upset at Janus's comments, bitterly remarking that Janus would leave him soon, as he only cared about Ash because of the perfect loyalty spell.
When Janus returned later after another trip to the mundane world, Ash met him and expressed surprise that he had returned, thinking that Janus would go live with Clary. He was excited by the thought that Janus would stay, and agreed to resume his training as a Shadowhunter, dismissing Janus's warning that learning to bear runes would be painful. When Janus mentioned that he was thinking about giving the world to his charge, Ash smiled, saying that he would like that.
Personality and traits
Due to his time in Thule Ash has developed a darker personality, described as a predatory and cold look in his eyes. He is not cruel, like his father was, and is capable of love for others. However, having been hurt and used by so many people in his life has taken its toll on Ash, as he mentions to Janus that he doesn't mind being hurt by him as he's used to it.
Ash seems to be especially aware of the perfect loyalty spell placed on him, and exhibits bitter tendencies and insecurity about his effect on the people around him as he is unaware whether they truly care for him or are under the spell's effects.
Ash has short white-blond hair, a sharp face, pointed ears, and the typical Fairchild green eyes. He has a wide X-shaped scar on the side of his throat, cut by Arawn. Ash also had black angel wings, tipped with silver, on his back that he could hide and spread out at will. He bears a resemblance to both his parents and even his aunt, Clary.
During his time in the Unseelie Court, he wore rich clothes as well as a golden metal band on his head, signifying his royal lineage. As a child, Ash was thin, looking almost unhealthy. He grew into a tall young man with broad shoulders.
Upon his arrival in Thule Ash was described as having a bright expectancy on his face when meeting his father. However, this hope was soon extinguished as Ash learned more of Sebastian and experienced his father's cruelty firsthand. At the time of Sebastian's death, Ash was aware that he was in danger of being killed by his father and had grown to hate him completely, though he hid it from everyone but Janus, whom he trusted.
During the course of his training with Janus, Ash grew quite attached to him because of the kindness that his father's general showed him. When Janus attempted to warn Ash to run away from Sebastian, Ash asked him to go with him and tried to comfort him when the bond he shared with Sebastian had a negative physical and emotional effect on him, driving him to his knees. After Sebastian died, Ash rescued Janus from the battle for the Silent City and later took him back to his own world. While in Faerie, Ash tried to help Janus by reminding him of his old self with a piano, hoping it would have a positive effect on his friend who was still damaged by years of being connected to Sebastian. When Janus decided to stay with Ash and train him in Faerie, Ash was pleased that his friend would not be leaving him, and happy to hear that despite being separated from him for a while Janus's affection for him had not diminished, as it would have had his love for Ash been purely a result of the perfect loyalty spell. Ash had been worried that Janus only cared because of the spell, and reassured Janus that he wouldn't mind the pain his friend might inflict on him during training as he knew Janus wouldn't want to hurt him.
Ash genuinely cares about Janus.
- Lord of Shadows (first appearance)
- Queen of Air and Darkness
- Forever Fallen
- The Wicked Powers (will appear)