Set in 1830, Cassandra Austen receives a letter prompting her return to Kintbury, where she confronts family tensions and uncovers secrets tied to Jane Austen’s legacy. Amidst caring for the dying Reverend Fulwar Fowle, Cassandra rekindles old bonds and pursues a hidden mission to protect Jane’s personal effects, revealing a poignant tale of sisterhood, love, and loss.