The Minivers: Minivers on the Run Book One

Meet The Minivers.
They're rich. They're famous. They're glamorous.
Now they're on the run. . .
And they're only two feet tall!
Rosamund and Emily Miniver live a fairytale existence. Worshipped by adoring fans, they make chart-topping CDs, have their own fashion labels and are the stars of their own TV show.
Yet not everyone adores the Minivers. When Rosamund is kidnapped, their perfect life suddenly goes horribly wrong. The sisters find themselves separated and caught in a desperate struggle for survival.
Who is trying to harm them and why?