"Something Wicked This Way Comes" was originally published in 1962 and is now available in the "Fantasy Masterworks" series. This might conjure images of some sort of sword and sorcery epic, but those familiar with Bradbury's most famous work "Farenheit 451" or the short stories of "The Martian Chronicles" will know that this is not what he does.
The plot here is pretty simple. The carnival run by Messrs. Cooger and Dark comes to Green Town. It is largely run by freaks: Dark himself is an Illustrated Man, for example, and his henchpeople include a skeleton, a dwarf and a dust witch. Two of its teenaged residents, Jim Nightshade and Will Halloway, steal away in the night to watch the carnival set up and discover that it is not all that it seems.
The carousel in particular attracts their attention and is a big lure for Jim. Will and his aging father see the carnival for what it really is and a showdown between good and evil is set up.
There's an element of Bradbury's work which is really a forerunner of that of Stephen King. His Green Town, Illinois serves much the same function as King's Castle Rock, Maine; a generic American small town backdrop for weird, unexpected and sometimes horrific events.
However, Bradbury wrote "Something Wicked This Way Comes" in a self-consciously poetic way King would never dream of using which for me rather got in the way of what is otherwise a pretty good yarn. A shame.