In this emotional, life-affirming novel, two women embark on an extraordinary road trip and discover the transformative power of female friendship--perfect for fans of JoJo Moyes and Gail Honeyman.

"The simple fact of the matter is that Iris loves life. Maybe she's forgotten that. Sometimes that happens, doesn't it? To the best of us? All I have to do is remind her of that one simple fact."

When Iris Armstrong goes missing, her best friend Terry--wife, mother, and all-around worrier--is convinced something bad has happened. And when she finds her glamorous, feisty friend, she's right: Iris is setting out on a bucket-list journey that she plans to make her last. She tells Terry there's no changing her mind, but Terry is determined to show her that life is still worth living.

The only way for Terry to stop Iris is to join her--on a road trip that will take them on a life-changing adventure. Along the way, somehow what should be the worst six days of Terry's life turn into the best.

Told in an irresistible voice and bursting with heart, Rules of the Road is a powerful testament to the importance of human connection and a moving celebration of life in all its unexpected twists and turns.