Jerry Todd and his chums, leagued together to help another boy save a peculiar invention of his father's, a talking frog, from thieving hands. Fun and mystery here! (Goodreads)
Edward Edson Lee (September 2, 1884 – September 28, 1944), who wrote under the pen name of Leo Edwards, was a popular children's literature author in the 1920s and 1930s.