Foeslayer is a female NightWing who first appeared near the end of the seventh book of the Wings of Fire series, Winter Turning, and appeared in Darkstalker and Runaway. She was one of the causes of the rivalry between NightWings and IceWings, as well as the mother of Darkstalker. In Darkstalker, Foeslayer is described as having black scales, with dark green underscales on her chest, as well as her eyes being closer to dark green rather than black. She has been described to have a smooth, long, dark neck. Foeslayer often describes herself as 'scatterbrained' in Runaway. She was locked in the Diamond Caves as a prisoner. After escaping, it's unknown where she went. She has been, like her son Darkstalker, imprisoned for thousands of years in an underground container and escaped it. It is likely Darkstalker and she will meet up in Darkness of Dragons.
Foeslayer is first introduced in the prologue when she pushes her way out, past Arctic and Snowflake, to the balcony. She is shown talking and moving erratically trying to warm herself up. She eventually annoys Snowflake into leaving the balcony. She teases Arctic about forgetting Snowflake's name. The two proceed to talk and flirt for a while. Eventually, Arctic enchants a diamond earring for her to keep her warm, although he was supposed use his animus gift for the IceWing tribe.
Foeslayer is heard arguing with Arctic over what would be best for their eggs. When Darkstalker hatches, she names him. Arctic says that it sounds creepy, but she retorts that it sounds heroic, like he's stalking evil. Arctic reluctantly agrees, but says he gets to name the next dragonet, Whiteout.
About three years after Darkstalker and his sister Whiteout hatched, Darkstalker comes home to Foeslayer arguing with Prince Arctic about whether he should leave or stay in the Night Kingdom after Queen Diamond sends him a message that offers him amnesty if he returned to her and he kills his dragonets. She gasps, but Arctic says he won't accept it.
To win the Diamond Trial, one must defeat Foeslayer and then freeze their opponent. When Hailstorm and Winter found her in the Diamond Caves, Hailstorm touched his narwhale spear to her and the icy layer that covers her cracks off. He then attacks her. She fought back and immobilizes him, and when she moved in to kill him, Winter, to her surprise, attacks her to prevent her from killing Hailstorm. She is then frozen by Hailstorm, who then revealed one of them had to die.
The two brothers agree to leave Winter behind to sneak off later and never return to the Ice Kingdom instead of Hailstorm having to kill Winter. When Hailstorm left, Winter tapped his spear to Foeslayer again and she remarked that she has never been woken up by the same dragonets twice. Winter asked why she took Prince Arctic, but she objected, saying she fell in love with him as he fell in love with her. Winter felt sorry for how she kept getting punished for over 2,000 years after she fell in love with the prince.
Winter figured out how to break off the animus touched shackles that kept Foeslayer from leaving the Diamond Caves. Before he broke them off, he asked her to promise to leave the IceWings alone. She agreed, stating she never wanted to see another IceWing ever again, and said that she was going straight back to the (old) Night Kingdom. Winter decided that this would be a chance to find the Lost Kingdom of Night since Foeslayer and Darkstalker are the only ones who know where it was hidden. He hoped that after finding it, he'd be able to rejoin his friends and save Jade Mountain.
Foeslayer appeared with Winter when they were flying back to Possibility. Foeslayer remarked that she hadn't seen a firescales dragon in a long time. Later, after Peril accidentally burned Winter in their fight, she commanded Foeslayer to look for help, and she disappeared.
"I didn't steal him. . . I fell in love with him. And he loved me too. That's the truth, although no IceWing has ever listened long enough to hear it before." -To Winter
"We didn't mean to ruin everything. Or start a terrible war, or to make two tribes hate each other for all eternity. We just wanted to be together." —to Winter
"The first forty times, Queen Diamond killed me herself."
"Brothers, oh my, how devastating. Welcome to my prison. I am Foeslayer." -To Winter and Hailstorm during the Diamond Trial.
"You could say my mother-in-law and I have a . . . complicated relationship." - About Queen Diamond
"Here's some advice for you - never make an animus angry."
"Oh my, Firescales! I haven't seen that in a long time." - About Peril
- All animus NightWings were descended from her and Arctic.
- She was the best fighter in her class.
- Foeslayer said that "NightWing mothers always know", inferring that it is instinct that they put their eggs under the moons.
- In Darkstalker, Darkstalker talks about possibly naming one of his and Clearsight's dragonets Foeslayer, after his mother.
- Because Foeslayer didn't necessarily age in the Diamond Trial Caves, she's physically younger than Darkstalker, making Darkstalker physically older than his mother.
- Foeslayer says she hasn't seen firescales in a long time, meaning firescales were possible in the past.
- Foeslayer could already be in the Night Kingdom when Turtle follows Darkstalker there, hence the feeling that Turtle got when he was there.
- It is very likely that she will appear again in Darkness of Dragons.
|Queens|| Present: Queen Glory • King Darkstalker • Queen Battlewinner
Historical: Queen Vigilance
|Jade Mountain||Starflight • Fatespeaker • Moonwatcher • Mightyclaws • Mindreader • Fearless • Bigtail|
|Deadlyclaws • Deathbringer • Farsight • Fierceteeth • Mastermind • Morrowseer • Obsidian • Preyhunter • Quickstrike • Secretkeeper • Shapeshifter • Slaughter • Starflight's Daughter • Stonemover • Strongwings • Vengeance • Wisdom|
|Allknowing • Clearsight • Discretion • Foeslayer • Foreseer • Jewel-eyes • Listener • Morrowwatcher • Prudence • Quickdeath • Starclaws • Swiftwings • Thoughtful • Truthfinder • Vision|
|Hybrids||Darkstalker • Whiteout • Eclipse • Shadowhunter • Sunny • Firefly|
|Kingdom|| Night Kingdom: NightWing Fortress • NightWing Tunnels|
|Society||The NightWing Exodus|