Isadora Moon is special because she's different. Her mum is a fairy and her dad is a vampire and she's a bit of both. When Isadora is invited to stay at her friend Zoe's house she's so excited - she hasn't been to a sleepover before! There will be midnight feasts, and staying up all night, it's going to be so much fun!

And while she's there, Isadora and Zoe are going to work on their cake for a baking competition at school. But will they be able to resist adding a sprinkling of magic to their creation?

Half vampire, half fairy, totally unique! Isadora is special because she is different. Her mum is a fairy and her dad is a vampire and she's a bit of both. In this underwater adventure, Isadora has been invited to a sleepover, which is always fun, but this time it's even more exciting because she will be staying at her mermaid friend's house under the sea!

It's so much fun spending time with her watery friends, but while she's there Isadora meets a mermaid called Emerald who doesn't seem to be having such a nice time.
In the middle of the night, when everyone else is fast asleep, Emerald finally reveals to Isadora what has been troubling her. Can Isadora help Emerald sort out her problem?