Arthur Conan Doyle (1859-1930) was a Scottish physician and author who in 1887 introduced Sherlock Holmes, arguably the best-known fictional detective. He also wrote poetry, historical novels, influential gothic short stories, and more. Doyle's proto-sf series of Professor Challenger adventures include the novels The Lost World (1912), The Poison Belt (1913), and The Land of Mist (1926), and the short stories "When the World Screamed" (1928) and "The Disintegration Machine" (1929).

Series Foreword vii
Introduction xiii
Conor Reid
The Lost World 1
Foreword 3
I There Are Heroisms All Round Us 5
II Try Your Luck with Professor Challenger 13
III He is a Perfectly Impossible Person 23
IV It's Just the Very Biggest Thing in the World 33
V Question! 55
VI I Was the Flail of the Lord 73
VII To-morrow We Disappear into the Unknown 85
VIII The Outlying Pickets of the New World 99
IX Who Could Have Foreseen It? 117
X The Most Wonderful Things Have Happened 147
XI For Once I Was the Hero 165
XII It was Dreadful in the Forest 187
XIII A Sight I Shall Never Forget 207
XIV Those Were the Real Conquests 227
XV Our Eyes Have Seen Great Wonders 247
XVI A Procession! A Procession! 269
The Poison Belt 293
I The Blurring of Lines 295
II The Tide of Death 317
III Submerged 339
IV A Diary of the Dying 359
V The Dead World 375
VI The Great Awakening 395
Afterword: Challengers of the Known 409
Joshua Glenn