Two sisters. Two different lives. One hell of a ride...

Lottie has always followed the rules. Her life is comfortable and she is - finally, finally - marrying her long-term, sensible boyfriend Dean. Tina is carefree, wild and, maybe, just a little bit careless. She doesn't understand Lottie's obsession with settling down with 'dull Dean'. There's so much to explore in the world. The two sisters have drifted apart since the death of their older sister. Without her, Lottie and Tina realise how little they know each other. Desperate to remedy this, Tina convinces Lottie to set out on a road trip across the US, just the two of them. But Tina has one more surprise in mind to shake up Lottie's ordered life - Lottie must say yes to everything Tina suggests, no matter what . . .

I found it deeply moving and couldn't stop reading