I didn't know this was around and was disappointed that I hadn't found it earlier as I'm a real fan of the Peter Grant series. I was even happier to find it was free, so thank you for that!
PC Grant is called to the British Library to investigate a suspected poltergeist and finds out something much more curious. It was witty and true to the Folly canon and I would loved to have heard more about the cunning device and it was a shame that it was so short.
I liked the reader, I thought his voice matched my idea of Grant well, the only thing I would have liked to know was where it was placed in the Folly stories, before or after the last book, The Hanging Tree.