BOOK REVIEW | PREACHING TO THE CHOIR | ADRIAN TCHAIKOVSKY About The Book Knives Out meets Ready or Not when a family gathering in an English mansion devolves into horror in a chilling novella from the “Master of British Sci-Fi” ( Reactor ) Elena Mendes thought she understood what “old money” was. She knew her boyfriend Ross Enderbough was rich. Like, “old money” rich. She knew he was the scion of…