Book selling

This book Natasha's will is by Joan Lingard

I can't put this book down it's so good
my mum said it's time to go to bed but
I beg her to let me stay up .

It's 1917 and the Russian revolution rages in the street of St Petersburg.
Natasha's grandfather, Prince Denisov has been arrested by the red
guards. Will the rest of Natasha's family have to flee their lives to save him?