4/5 Stars: ‘What Stars Are Made Of’ is a Middle Grade, Family Contemporary by Sarah Allen; ‘What Stars Are Made Of’ is a tender portrait of a compassionate heroine trying to make things right in her universe and in the lives of those she loves. Allen, who was also born with Turner Syndrome, explores themes of family loyalty and personal resilience and resolve, wrapping them up in a clever story of science; how the universe works and how stars can truly guide the way. The protagonist’s optimism is infectious, with sparklingly first-person narrative directed straight at the reader.