After rescuing Tomos from enchantment, orphan Seren Rhys is enjoying her first summer at Plas-y-Frân. But as autumn arrives, it brings with it a mysterious new governess who seems intent on drawing Tomos away from Seren and his family. Seren calls on the clockwork crow to help her. But can he reach her in time, and will Tomos be able to escape? -- Cyngor Llyfrau Cymru