Maisie vs the Himalayas

I'm Maisie.
I write stories about pirates and dragons.
So when my dad takes me to the land of the thunder dragon, I'm definitely ready for adventure. But I wasn't expecting to go deep into the caves beneath the mountains. Or to discover buried treasure. Or for Dad's worst enemy to be there.
Because it turns out there's a secret Dad's kept hidden. About my mum and about myself. And this time, it's really dangerous...