Who stole the dinosaur bones? Junior detectives help Sergeant Sally crack the case by slipping the Nightlight Detective paper flashlight under each plastic page to light up the clues as the story unfolds. Ages 4 to 9.Who stole the dinosaur bones? Junior detectives help Sergeant Sally crack the case by slipping the Nightlight Detective paper flashlight under each plastic page to light up the clues as the story unfolds. Ages 4 to 9.