Another switch between two people occurs between Tom Canty and Edward VI his (*) The Prince and the Pauper.
One novel by this author features the twins Luigi and Angello Capelo, who were originally designed to be conjoined. That novel by this author centers on Roxy's switch of her son, Valet de Chambers, with (+) Tom Driscoll, when the two were infants and features a title character who is a lawyer and a fingerprint enthusiast. Another switch between two people occurs between Tom Canty and Edward VI his (*) The Prince and the Pauper. For 10 points, name this American author better known for creating such characters as Becky Thatcher and Tom Sawyer.
One novel by this author features the twins Luigi and Angello Capelo, who were originally designed to be conjoined.
Mark {Twain} [or Samuel Langhorn {Clemens}]