What Abigail Did That Summer

Peter Grant's teenage cousin and the narrator, who investigates missing teenagers on Hampstead Heath while training in magic.

A boy Abigail's age she meets in the park, who becomes her friend and joins her investigation.

One of the clever talking foxes of Hampstead Heath who help Abigail.

An old friend of Abigail who reappears with an invitation to a mysterious gathering.

A girl who invites Simon to the park and goes missing alongside Natali.