Maria Merryweather returns to Moonacre Manor with her granddaughter Rose to escape the horrors of the first world war bombings in London.

The magical qualities of Moonacre Valley are rediscovered as Rose meets Wrolf, who is more lion than dog, and sees the little white horse, an entrancing unicorn. Rose soon discovers that the Merryweathers' old foes, the de Noir clan, are once more spreading darkness and fear through the Valley under the influence of Hugo de Noir. With the help of her new friend, Devin, and a variety of animal companions can Rose uncover the mystery of the Silver Moth aeroplane, rescue a young woman and her baby, and help an unexpected kindred spirit, William de Noir?

Beautiful, thrilling, and magical, The Silver Moth, returns to the fantasy world of the bestselling timeless classic The Little White Horse.