Tilly can't believe it when her best friend Matty is asked to be a bridesmaid.
In Tilly's favourite daydream, she's wearing the most beautiful bridesmaid dress and walking down the aisle behind a bride.
The one wedding she'd really love to attend is her own mum and dad's - but it seems like that's never going to happen.
So Tilly decides to make her own dream come true, and puts a notice in the local shop, advertising her services as a bridesmaid.
And to her amazement, she gets a reply .
A fabulous, funny and moving story about finding family and friendship in all sorts of places, from the mega-bestselling author of Tracy Beaker, Hetty Feather and Katy.