One difficult moment at school leaves Gabi with a question she can no longer ignore: Why do we pray, and does God really hear us? That evening, Gabi shares her worries with Pop Pop. His patient and loving response begins a much bigger conversation—one that leads Gabi to ask whether Jesus was truly a real person. The following day, Pop Pop transforms the family home into the scene of a Great Investigation. Armed with a magnifying glass and an eagerness to discover the truth, Detective Gabi examines eyewitness accounts, early Christian writings, historical records, and testimony from ancient writers who did not follow Jesus. Every clue brings her closer to an important conclusion. Combining an engaging family story with Christian teaching, historical evidence, memorable rhymes, discussion questions, and Detective Missions, The Question That Started It All helps children understand that asking sincere questions does not weaken faith—it can help faith grow stronger. This first adventure in the ten-book Bible Detectives series is ideal for shared reading, bedtime conversations, family devotionals, Christian education, and grandparents who want to pass faith on to the next generation. The investigation has only just begun.