This book is an abridged version of Arabian Nights. I recommend the four volume complete version available in Manybooks. The volumes are very descriptive and full.
Sorry I gave a wrong rating earlier.
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.