Finished the writing of book 4 a couple weeks ago. After that, began the arduous task of going back to edit. Grammarly didn't like my use of commas. That was the bulk of the 'critical errors' (Grammarly is a bit over-dramatic.)

Grammarly (which is automated algorithms) also doesn't understand dialogue. People don't usually speak in tidy/proper English. They actually sound kind of stiff when they do. Things like double-negatives or implied subjects are pretty common in everyday speech, but frowned upon by algorithms.

That said, the Grammarly phase is passed and now the book is in the final proofreading stage. She's found a couple things that the algorithms missed, so it's a necessary process.

While the proofreader is proofing, that left time to work on the cover art. Think that's about ready to go. A sample is shown here.

Hopefully, Book 4, "Susan's Bridge" will be released within the month.