Ms. Thorn

Ms. Thorn is a teacher in Ember who taught both Lina Mayfleet and Doon Harrow. She accompanied them on the journey to Sparks, and there worked on a new garden being built by Clary Lane and also help Edward Pockets with the library.

Personality
Ms. Thorn is described as "fragile." She is careful to avoid conflict, as shown in The People of Sparks during a tense conversation between the Parton family and the Emberites.