If you want the ebook: https://www.amazon.com/gp/product/B07FTK3W6Q/
If you want the print book: https://www.amazon.com/Guineveres-Tale-Nicole-Evelina/dp/0996763287
The ebook is $4.99. The print book is $40.00, which is cheaper than buying all three books separately.
If you are looking for the book on other sites, please check back on the sites over the next week. It is up to the companies as to when they release it.