Spectre of the Grasceby Flier

Spectre of the Grasceby Flier is now published and available on Kindle, paperback and KU 

So:

How does the Grasceby Flier fit in with the ending of book 5?
When did Grasceby even have a nearby railway?
Who is the woman on the cover?
And why is Helen now alive?

James has his work cut out as past knowledge of his ghostly encounters proves useful as he explores the 
Spectre of the Grasceby Flier…

UK
Kindle:
https://www.amazon.co.uk/dp/B0CZP7Z2DM
Paperback:
https://www.amazon.co.uk/dp/B0CZPDYP4T
US
Kindle:
https://www.amazon.com/dp/B0CZP7Z2DM
Paperback:
https://www.amazon.com/dp/B0CZPDYP4T