You can read the first five chapters online @ CrimeReads.com.

The Spring 2021 issue of Suspense Magazine contains a review on page 31.

Is there an error on page 275?
Readers more astute than me have noticed that on page 275 Dean has created a door that is “hinged on the outside” yet “the door swung inward.” On the face of it physically impossible. (This text also appears in the ARC.) However, there are things called “reverse hinges,”  the door appeared “where a door had not been before,” and on page 134 Mathers describes the hall as “all the angles was wrong, walls and ceiling, like it was–I don’t know–all sorts of rubbery.”
So, is this an error or intentional. We’ll at least have to wait until the paperback release to see if it’s been corrected or now.

Promotional media:

Trade edition photos:

Notes:

Normally there aren’t many differences when it comes to the interiors of the ARCs and the final release. However this time I did notice that when it came to the pages indicating the “Parts” of the story, the ARC pages are plain, while the same pages in the trade hardcover release were are illustrated.