Stevenson’s chilling tale of the respectable Dr Jekyll and his infernal alter ego, Mr Hyde, was first published in 1886 and became an immediate popular success. The story gives intense and disturbing expression to Stevenson’s lifelong fascination with evil, and it is a measure of his achievement that he successfully demonstrates the seductiveness as well as the horror of an existence freed of all moral restraint. Two later stories The Beach of Falesá and The Ebb Tide, both set in the South Seas, explore the same moral terrain as Jekyll and Hyde. Both, however, reveal an increasingly sophisticated apprehension and representation of human behaviour. The Beach of Falesá is printed here in its unexpurgated form.