One of this character's lies is exposed after his half-brother points out the color of the thread in his collar. He exonerates a man who did not kill Dr. Robinson, a drunkard named Muff Potter. In a book titled for this character, he and a friend hunt for treasure when they find a man disguised as a deaf and dumb Spaniard. This character attends his own funeral and is briefly "engaged" to Amy Lawrence; he also gets lost in McDougal's Cave, where he finds Injun Joe's dead, with Becky Thatcher. For 10 points, name this boy who tricks his friends 
One of this character's lies is exposed after his half-brother points out the color of the thread in his collar. He exonerates a man who did not kill Dr. Robinson, a drunkard named Muff Potter. In a book titled for this character, he and a friend hunt for treasure when they find a man disguised as a deaf and dumb Spaniard. This character attends his own funeral and is briefly "engaged" to Amy Lawrence; he also gets lost in McDougal's Cave, where he finds Injun Joe's dead, with Becky Thatcher. For 10 points, name this boy who tricks his friends into whitewashing a fence for him, a Mark Twain character who befriends Huckleberry Finn.
One of this character's lies is exposed after his half-brother points out the color of the thread in his collar.
Tom Sawyer [accept either underlined name]