Summoned from London, journalist Edward Malone, narrator of Arthur Conan Doyle's prehistoric-adventure novel The Lost World, finds himself reunited with his erstwhile travelling companions at the country home of their leader, the indomitable Professor Challenger, who, confining his guests in a sealed room with the cylinders of oxygen they have brought at his request, informs them that the Earth is passing through an immense miasma of poisonous ether that will likely extirpate all life. And so...

Features stories such as: A Study in Scarlet, The Sign of Four, The Hound of the Baskervilles, and, The Valley of Fear.

First appearing separately in the Strand Magazine, these stories were published together in 1892 in a volume that rapidly became one of the most popular Sherlock Holmes collections. This edition contains extra material for young readers.