It is followed by The Wisdom Seeker.
When Bella is alerted to dangerous events unfolding at her old school, Hogwarts, she has no choice but to inform the Cullens of her true, magical identity. To put it simply ... she's a Witch.
Bella is a witch. She cannot return to school because of her blood status. The Death Eaters have infiltrated the Ministry of Magic, and are therefore ensuring the persecution of Muggle-borns. Because of this, Bella moved to Forks to live with her father, where she met Edward and the Cullens.
Following the trouble with James, the Cullens' departure from Forks and the subsequent meeting with the Volturi, a new danger arises. As a member of Dumbledore's Army, Bella possess a charmed galleon used for communication. When she receives a message about events unfolding in the wizarding world, the witch has no choice but to share her secret with the Cullens. Together, they journey to Hogwarts, ready to join the students and teachers of Hogwarts in the final battle against Voldemort and the Death Eaters.
The Secret Keeper offers a new perspective, but ultimately remains faithful to the Harry Potter storyline. The Secret Keeper