The Land of Mist is a novel by British writer Arthur Conan Doyle, published in 1926.

Although this is a Professor Challenger story, it centres more on his daughter Enid and his old friend Edward Malone who later marry.

Reporter Ned Malone (who was one of the main characters in Arthur Conan Doyle's The Lost World) returns in this novel, in which he and Professor Challenger's daughter Enid are assigned to cover the current spiritualist phenomenon.

Heavily influenced by Doyle's growing belief in Spiritualism after the death of his son, brother, and two nephews in World War I, the book focuses on Edward Malone's at first professional, and later personal interest in Spiritualism.

There is a suggestion in chapter two that the deaths of "ten million young men" in World War I was punishment by the "Central Intelligence" (that is, God) for humanity's laughing at the evidence for life after death.