Mr Pink-Whistle is not like ordinary people. He's half a brownie and half a person, and he can make himself invisible whenever he wants. But the most important thing about him is he's always helping people in trouble and getting himself into all sorts of funny situations.

The Adventures of Tom Sawyer is the first of Mark Twain's novels to feature one of the best-loved characters in American fiction. From the famous episodes of the whitewashed fence and the ordeal in the cave to the trial of Injun Joe, The Adventures of Tom Sawyer is redolent of life in the Mississippi River towns in which Twain spent his own youth. A sombre undercurrent flows through the high humour and unabashed nostalgia of the novel, however, for beneath the innocence of childhood lie the inequities of adult reality - base emotions and superstitions, murder and revenge, starvation and slavery. In his illuminating introduction, noted Twain scholar John Seelye considers Twain's impact on American letters and discusses the balance between humorous escapades and serious concern that is found in much of Twain's writing. Samuel Langhorne Clemens (1835-1910) trained as a steamboat pilot on the Mississippi river; 'Mark Twain', a phrase used on riverboats to indicate that the water is two fathoms deep, became the pseudonym by which he was best known. After the Civil War, Twain turned to journalism, publishing his first short story in 1865. Dubbed 'the father of American literature' by William Faulkner, Twain led a colourful life of travelling, bankruptcy and great literary success.