Books with author Hugh Bowden

Mr. Topper, the magician, entertained children by pulling all sorts of things from his top hat. There were bells, balls, dolls, bats, balloons, birds, orange cats, baby ducks and more! One day he could not find his hat. Everyone wanted to help, and they looked all over town. He found all kinds of friends in the search, and at last, the hat! Where had it been?