Michael McDowell's Blackwater series does not shown in original

[Can]

When I check Michael McDowell's Blackwater series, I see that the page does not show the original books but only Spanish editions are recent ones:
https://www.goodreads.com/book/show/2...

Even on the author's page, it is not possible to see the English editions: https://www.goodreads.com/author/show...

[Scott]

I guess they are the most popular editions.