The Mystery of the Man in the Tall Black Hat

It's the first day of summer, and preteens Tod and Barney are going to make the most of it. Off they go into the fun-filled woods and marshes, where they find frog eggs, rabbits, tadpoles, and a mysterious Abraham Lincoln-like character with a stovepipe hat and cane. The siren at the mental hospital blasted about the same time the summer adventurers spotted the strange man. Could he be?Tod and Barney are two energetic boys whose antics and excursions will bring many a laugh from the juvenile reader. Both fellows are a little afraid (though they won't admit it) of the mysterious man. How does he suddenly appear from nowhere and then vanish again just as quickly?