Like other rock hopper penguins, Mr. Pin enjoys the icy weather in the South Pole. But he loves eating chocolate and solving mysteries more. When he moves to Chicago to be a detective, his new home is wonderful! Snowflakes swirl in the wind, and Sally from Smiling Sally’s diner gives him all the chocolate ice cream he can eat. Soon Maggie, Sally’s young niece, becomes his new friend. But Sally and Maggie are worried. Gangsters are threatening to blow up the diner. Will Mr. Pin be able to help them? In The Mysterious Cases of Mr. Pin, Chicago’s delightful new penguin detective is up to his beak in problems and clues. Mr. Pin will entertain young readers with his tasty solutions to three puzzling cases and provide thoughtful lessons in friendship.