Mirabelle's mum is a witch, her dad is a fairy, and she is a bit of both! Mirabelle is having a BAD DAY! Her best friend, Carlotta, can usually make Mirabelle see the funny side but she's away from school and Mirabelle can't help feeling a BAD MOOD coming on. When Mirabelle gets home to find her brother has eaten the last chocolate biscuit and is playing with her beloved pet dragon, Mirabelle finally loses her temper, with dramatic consequences for all the family! Will Mirabelle be able to put things right and turn her bad day around before bedtime...?