The Land of Mystery

Classic adventure novel. According to Wikipedia: "Edward Sylvester Ellis (April 11, 1840 – June 20, 1916) was an American author who was born in Ohio and died at Cliff Island, Maine. Ellis was a teacher, school administrator, and journalist, but his most notable work was that that he performed as author of hundreds of dime novels that he produced under his name and a number of noms de plume. Notab...