When a long-anticipated holiday takes an unexpected turn ... Aussie farm girl Matilda Moore kicks off her dream trip to London by flat-sitting for her childhood friend. But London is daunting, crowded and noisy, and that's before Tilly finds a baby on the doorstep. There's a note attached: 'Henry, if you're reading this, please know the worst has happened.' Probability expert Henry Church has finally returned home to Wirralong, Australia, to see his grandparents when he gets a phone call from Tilly that breaks every statistical analysis. The probability of him being the father is marginal. Plus, he knows nothing about caring for a baby. Emotions and socialising are even bigger mysteries. He begs Tilly for help - can she cut her holiday short and bring the baby to Wirralong?
