First read it when I was 15 and it froze me in terror. Then came Christopher Lee's excellent scary film. Then on I have read the book many times and love getting disturbed every time. Set at Victorian period with the old England language, the book still fascinates me.
A family from 1940's decide to travel in to the future and land in a time a 100 yrs later. How could they do it is a big question. They make an impression on a dead and decadent society of the time. Very abrupt ending with little or no plot.
One of my favourite books when in school. I read it many times after that. Now I own a copy and still reading it. The book is sure to bring in a spirit of adventure in young people.
Henry Ratliff's excellent review is more interesting than the book.