The book ‘Pearl And Derek Mysteries’ is written by Gillian Larkin. In the story, ‘A Lonely Death’ Derek Quill is an elderly gentleman who sees the ghosts of murdered people and teams up with his ghost friend Pearl to uncover the truth behind their deaths. As the story shows, ‘A Slip and a Trip’ Derek and Pearl meet Ryan Buckley, a young man who apparently died after slipping in front of an oncoming bus.