Please don't read on if you haven't read this book:
I want to explore Letty's motivations to turn her friends into the police by reenacting what potentially happened when she went to the Police Station:
Letty: Hello Officer, I want to report a crime. My friends who I am complicit in murder with are plotting to stop the empire from waging unjustified war against China potentially saving the lives of 10s of thousands of people.
Officer: Oh thats horrible, how are they planning on stopping this.
Letty: They plan on passing out fliers in London to influence public opinion as well as writing members of parliament to get them to vote against the motion to go to war.
Officer: Dastardly! We can't have that, tell me their location and we will raid them asap!
Letty: Theyre at the Old Library. I just have two requests: I'd like to join your raid and I'd like a gun.
Officer: Do you even know how to use a gun?
Letty: I'm the daughter of an admiral who believes women shouldn't be allowed to read and are only good for Marriage, of course he taught me to use a gun.
Officer: As the daughter of an admiral if I put you in harms way and something happened I would be hanged, correct?
Letty: Yes absolutely.
Officer: Very well, here's a gun, I'd like you on the vanguard of the raid. I think its best if you confront your friends with a gun.
Letty: (Proceeds to shoot one of her friends dead for no reason).
fin
Seems to check out, I was worried her actions were unjustified but after writing this out I see why it all unfolded the way it did.
by dangerwig