Two spies exchanging top-secret information…A sand-castle Terminator…A dog that’s been kidnapped…A manhole-cover salesman…And an annual Duck Derby that’s run afowl!The solutions to all the mysteries are in the back (just in case you don’t crack the case!) Read all the books about Encyclopedia Brown!

Donald J. Sobol was the author of the highly acclaimed Encyclopedia Brown series and many other books. His awards include a special Edgar Award from the Mystery Writers of America for his contribution to mystery writing in the United States, and the Pacific Northwest Library Association Young Readers’ Choice Award for Encyclopedia Brown Keeps the Peace.