this is a new thread for those spoilers
this is my theory
when nesta winnowed, she didn’t go to the prison, but the bone quarter in CC. Gwydion aka the starsword became a compass in some form, and now back in the world with Bryce has vanished to reappear to her
I reckon we will get a new CC book starting with Bryce being rather startled to get the Starsword back