In the kingdom of Fairyland-Below, preparations are underway for the annual Revels ...but aboveground, the creatures of Fairyland are in no mood for a party. It has been a long time since young September bid farewell to Fairyland, and she is excited to see it again.

September is a twelve-year-old girl, Somewhat Grown and Somewhat Heartless, and she longs for adventure. So when a Green Wind and a Leopard of Little Breezes invite her to Fairyland - well, of course, she accepts (mightn't you?).

The phenomenal novel from New York Times bestselling author Cat Valente - her first for adults in more than three years - is worth the wait: Radiance is a decopunk pulp SF alt-history space opera mystery set in a Hollywood, and solar system, very different from our own ...

September misses Fairyland and her friends Ell, the Wyverary, and the boy Saturday. She longs to leave the routines of home, and embark on a new adventure. Little does she know that this time, she will be spirited away to the moon, reunited with her friends, and find herself faced with saving Fairyland from a moon-Yeti with great and mysterious powers.

The fourth instalment in the bestselling Fairyland series, hailed as 'one of the most extraordinary works of fantasy, for adults or children, published so far this century' (Time magazine).