It's on Etsy too:
https://www.etsy.com/listing/9448903...ital-pdf-novel
I found out about this through seeing that another of his books, one called Halloween Bestiary, which is an affectionate parody of cryptozoology books only it's about Halloween decorations, is also on there:
https://www.etsy.com/listing/9448624...ry-by-jonathan