This set of three picture books follows the adventures of a little girl called Olivia and her magic unicorn as she is whisked away into a magical realm of her imagination. In the first book she encounters some naughty elves and learns about kindness and forgiveness through the help of the crystal fairies. Olivia then discovers some nature fairies in Book Two, who show her how the minutiae of the forest keep a delicate ecology in balance. And in the final book, Olivia, with the help of a group of Mermaids, is guided through the turmoil and fragility of the ocean environment. The series encourages problem solving and emotional resilience.