Friendship is always an adventure when you're a unicorn attending school in the sky! It's that time of year, when all of Destiny is decorated from wing to hoof in spider webs, ghosts, pumpkins, and pegasus witches on broomsticks...All Souls Night is here! All the Melowies dress up for the masquerade ball celebration and spooky stories are told of ancient times passed, when good and evil battled for control of Aura. This year, the legendary and priceless crown of Queen Alexandria is present for the festivities...until it mysteriously vanishes! Cora, Cleo, Maya, Selena, and Electra must search for the crown as the future of all Destiny hangs in the balance!

The stars of the new best-selling series of chapter books from Scholastic are five flying unicorns known as Melowies. Together they attend a very special magical school known as Destiny, where they each learn to control their very own special power. But right now the high-flying Aerobatics competition between the magical schools of Destiny and Chance is about to begin, and Cleo and Electra are representing Destiny. Cleo has extra motivation as Toby, her friendly crush from the Night Realm is also in the competition. But could a jealous Eris sidetrack Cleo and Toby from reaching the finish line? To win Toby's affection, Eris acquires a mysterious locket from Destiny's resident librarian Circe, who has her own sinister motives. What dark forces await the Melowies?