lucy cartwright

Anna and Grace Headcanons

For @wingardium-leave-me-alone-sa because my computer decided to delete my earlier response and I feel horrible about it.


  • My all time favorite Anna headcanon is that Anna always acts really annoyed when Christopher asks for her to help him test his various hypothesizes, but Anna secretly loves learning from him.
  • Anytime he discovers something new Anna is astonished about what a genius her baby brother is. 
  • All the Lightwood and Herondale kids meet up at Anna’s flat and hang out
  • They literally just sit around and complain about their parents to each other, and Anna gives them all great advice about life.
  • When Grace broke James’ heart, he headed straight for Anna’s flat. He didn’t know why he went to her instead of Matthew, but Anna was able to cheer him up almost immediately.
  • After that, Anna and James’ relationship strengthened and they became nearly inseparable, and James would visit Anna anytime he was feeling down.
  • Anna is super sassy to her parents, and the way she talks to Cecily drives Gabriel mad (however, he fawns over his daughter.)
  • Anna is very blunt, and she will often say things that others perceive as insulting.
  • Cecily tried to talk to her about it but Anna wouldn’t have it, saying she only spoke the truth.
  • Anna doesn’t really care what anyone else thinks of her; she dances to the sound of her own music, and she won’t let anyone else’s words or opinions change that.
  • Anna does, however, immediately jump to the defense of her friends and family. If anyone hurts her loved ones, especially Christopher, James, or Lucie, they better run because Anna will hunt them down.


I’m a huge Charles Dickens fan (I’ve read all of his books many times each,) so I tend to associate Grace with Estella from “Great Expectations.” I believe both of their characters will follow similar development arcs, but I can try to create some headcanons anyway:

  • Young Grace was absolutely devastated when her big brother Jesse died.
  • She cried for weeks and weeks on end, and Tatiana was too grief-stricken to comfort her.
  • This was around the time Grace met James, who helped her understand and move past her loss.
  • Grace secretly always admired James’ love of literature growing up, and she wished she could study books as often as he did.
  • She read every book in the old Blackthorn manor from cover to cover multiple times and also learned to appreciate the written word.
  • Grace begged Tatiana for more books, but she said no because “pretty girls had better things to do than read.”
  • This infuriated Grace, who began reading as many books as possible which she borrowed from James
  • Soon James and Grace would have these long, in-depth conversations about various classics, authors, and characters that they read about.
  • James started visiting Idris less and less, and Grace soon lost her access to his extensive library.
  • She started sneaking into Alicante to buy second-hand books, and she hid them all in her room.
  • When Jesse came back, Grace shared all of her books with him while Tatiana tried to keep him hidden.
  • Eventually, Grace grew to hate Lucie and Cordelia, especially after they “took” Jesse away with them
  • In reality, she was devastated that she was trapped alone with Tatiana again.

I hope you liked my headcanons! Please send me your theories, ideas, and headcanons, and I will post them on my blog!


Cordelia Carstairs. Bit of a scapegrace and ever since she was ten she’s had a sort of a crush on James Herondale, who is parabatai with the always-delightful Matthew Fairchild, and has a very odd relationship with Tatiana’s Blackthorn’s ward Grace Blackthorn, whose brother Jesse Blackthorn may or may not be dead, a mystery that occupies the busy brain of writer Lucie Herondale, whose father would really prefer she marry Alastair Carstairs, Cordelia’s older brother. Shown with Cortana — looks like Elias did as Tessa suggested and passed it down to his own children after all. Alastair is best friends with Charles Fairchild, who you may remember as Potentially Buford from Clockwork Princess. Charles would like to be the next Consul, alas, and Henry finds he rather gets along better with Cecily and Gabriel’s son, Christopher, who is the younger brother of the ever so sophisticated Anna Lightwood.

The Last Hours Theories

It says in the Shadowhunters Codex that a new set of accords were passed in 1903. GUESS WHAT ELSE HAPPENS IN 1903. THE LAST HOURS.

I feel like James and Lucie Herondale are going to be discriminated against because they are half warlock AND THAT JUST MAKES ME REALLY MAD OK. 


Woman Mathematician part C

Dame Mary Lucy Cartwright –  With J. E. Littlewood she was the first to analyze a dynamical system with chaos. She also simplified Hermite’s elementary proof of the irrationality of π.

In 1947, she was elected to be a Fellow of the Royal Society and, although she was not the first woman to be elected to that Society, she was the first female mathematician.