For ten points, name this American author of Huckleberry Finn and Tom Sawyer.
In a novel by this author, Hank Morgan takes over Merlin's position through time travel. This author of A Connecticut Yankee in King Arthur's Court wrote a novel in which the deceitful Duke and Dauphin try to trick a boy who travels with Jim down the (*) Mississippi River. For ten points, name this American author of Huckleberry Finn and Tom Sawyer.
In a novel by this author, Hank Morgan takes over Merlin's position through time travel.
Mark Twain (accept Samuel Langhorne Clemens)