Darla

Introduction
Darla was a Witch of Old Salem and a member of Cassandra's coven prior to its breakdown in 1693.

The Purging of Magic
At some point prior to the short story, Darla was arrested under suspicion of witchcraft. Cassandra and her family then attend her trial, in which she is found guilty and hanged.

Cassandra
In the first chapter of the short story, Cassandra notes that she trusts Darla to keep the existence of her coven a secret, hinting that there is a certain level of trust between them.

Trivia
To be added.