First Line of Wool

The book begins:

The children were playing while Holston climbed to his death; he could hear them squealing as only happy children do.

-- Wool by Hugh Howey.

The book is quite a page-turner. The book has been adapted as a television series called Silo on Apple TV plus. If you enjoyed Severance, then I recommend the show. I am only just beginning the book so I have no opinion on how the book differs from the onscreen version.