First, Detective Dinosaur solves the mystery of the missing hat. Then he cracks the case of the squeaky shoe. Then he goes onto night patrol and spots a scary shadow in a dark alley. Can it be a monster? Help Detective Dinosaur follows the clues and find out!Detective Dinosaur, a bumbling , big-hearted prehistoric sleuth, often causes the mysteries that he has to solve. With the help of his savvy sidekick Officer Pterodactyl, he cracks the cases of a missing hat, a squeaky shoe, and a mysterious shadow. Brought to life by R.W. Alley's spirited illustrations, Detective Dinosaur's goofy antics are sure to leave beginning readers with a case of the giggles!