Kerstin Gier 's Books
A very well recieved series by Kerstin Gier are the books, featuring tropes. The most popular books are Emerald Green, Ruby Red, Saphirblau, Dream On, Just Dreaming, Sapphire Blue, A Castle in the Clouds, which was published in 2022.
Emerald Green
Ruby Red
Saphirblau
Dream On
Just Dreaming
Sapphire Blue
A Castle in the Clouds