After helping Luster Dawn return to her title as Princess of Unity and after Irradiance returns to his studies as Twilight's student, all is well. Until shadows start creeping up on the Crystal Empire once more.

Now Princess Twilight's student, Irradiance is suddenly dealing with an issue with his magic. Something tells Twilight this has to do with the tree he touched in the forest...

Irradiance, a Unicorn who gets cursed and has his horn and hooves turn to crystal, must travel through the Everfree Forest to find a cure. When a new friend approaches to guide him, something starts to feel... off.

Velvet was born from a pegasus mother, with a strange ability: she's a unicorn, with glittering feet, and horn, no wings, but can walk on clouds. Why is this possible? Read the book to find out more about this young mare's journey.