Unicorn Magic: Twinkleshade and the Calming Charm

Best friends Emily and Aisha are thrilled when they're whisked away on a new series of adventures in the magical Enchanted Valley, where good Queen Aurora rules kindly over the unicorns and other magical creatures.
In this series, the girls find out about the magical healing crystals which help to keep every Enchanted Valley family safe and well. But there's trouble afoot - the horrible unicorn Selena has stolen Twinkleshade's magical locket, which helps heal the mind. Now all the creatures of Enchanted Valley are feeling stressed and anxious, and they need Emily and Aisha's help.
Can the girls recover the stolen locket and restore a sense of calm to the valley?