Best known for his novels about class and hypocrisy - Howards End, A Room With A View and A Passage To India - The Machine Stops was Forster's only foray into science fiction.
Published in 1909, it tells the story of a mother and son - Vashti and Kuno - who live in a post-apocalyptic world where people live individually in underground pods, described as being "like the cell of a bee", and have their needs provided for by the all-encompassing Machine.
It is a world where travel is rare, inhabitants communicate via video screens, and people have become so reliant on the Machine that they have begun to worship it as a living entity.
If you want to buy the book from Amazon, you can use the following links:
The Machine Stops - Paperback https://amzn.to/2QSA1Nk
The Machine Stops - Kindle https://amzn.to/2zTkCmi