Back in hardcover format after a 50-year absence -- now with bonus special pages The Happy Hollisters and the Whistle-Pig Mystery (#28 in the Happy Hollisters series) While watching TV, Pete Hollister hears about a train robbery in New England. Masked bandits have stolen almost a million dollars in cash from a mail car At the same time, the Hollisters receive a request from their friend, Fritz, the old wood...