If you want to read Everglades, a thriller/mystery/whatever by Randy Wayne White, there is nothing I can do to stop you. Nor is there anything I would want to do, either to stop you from reading the book, or to encourage you to do so. What you do with your free time is your business.
When I picked up the paperback at some big box bookstore or other, I certainly didn’t ask your permission. You don’t need mine.
The book is part of a series, but every book is part of series now, it seems. If Charles Dickens were publishing today, he’d feature the same cast of characters in every one of his novels, except for the occasional “stand-alone” that nobody bought.