Tilly's fifth novel A Taste of Heaven was published in 2013 by Puffin Books. A departure from the darker themes of Tilly's previous work, the novel is about two young girls who become friends who experience the "comical, sometimes bittersweet and melodramatic trials and tribulations of tweenhood". One reviewer wrote, "Tilly paints an insightful, memorable portrait of the ups and downs of friendship and the unwavering bonds of family, delving into age-old issues of honesty, trust, and loyalty. A Taste Of Heaven was shortlisted for the 2014 Libris Young Reader Book of the Year, a 2014 Diamond Willow Award and won the 2014/2015 Chocolate Lilly Award.