I listened to this as an audiobook.
Forever Autumn, as can be seen by the cover, is a Halloween story. I did wish I had kept it to Halloween, but I'm going through the books in publication order, and this was next.
The story itself reflects the mood of Halloween very well. There are cats, bats, a weird tree, fog, all the things that make Halloween a fun time. At times, it was genuinely frightening as well.
Will Thorpe reads the story, who played Toby Zed in "The Impossible Planet"/"The Satan Pit". He does a great job of it, and does justice to the characters.
I recommend reading it for Halloween, and then the atmosphere will be perfect.