For mommy blogger Madeleine Cooper, vaccination was a leap of faith she wasn't prepared to take. She and her husband declined controversial measles shots for their daughter Clara. All she can do is pray that it's the right decision.

But when classmates Clara and Rosie both become sick will Kate pay for Madeleine's choice?

A stunning, addictive and powerful new book club read that explores every mother's worst fear and hardest decision from beloved Irish bestselling author Melissa Hill.