Mark Edwards is one of the most successful and popular contemporary English crime writers and his books have kept me company during long winter night or hot summer days. The House Guest is a crime/mystery novel that bears the trademark characteristics of the author's distinctive writing style that enthralls the reader and keeps him on the edge of his seat, turning the pages in order to find out what happens next. His plots are usually complex and ingenious, though in this one the main plotline is not as elaborate as it is in some of his previous books such as The Retreat or The Magpies. The story begins when a young woman appears on the doorstep of a wealthy couple who is away for vacation. The house is occupied by a couple of house-sitters, Ruth and Adam. Adam is also the main protagonist and first-person narrator of the story. The young intruder's name is Eden and she claims that she is a friend of the couple of owners and she asks for a little help as she is from California and had no ties to New York City. Adam and Ruth decide to accommodate Eden and they ask her to come and live with them in the house for a few days until the owners are back from their journey in New Mexico. Eden will prove to be kind of a dark horse and her behavior begins to puzzle Adam until one night she disappears from the house along with Ruth. Adam is desperate to find out what happened and where is Ruth. Has she been abducted or had she left of her own free will? Our protagonist will embark on a journey to find the truth and he will have to face realities that will make him feel dizzy. Overall, The House Guest is a pretty entertaining crime novel that can be read easily in just one -or two- sitting(s). The thing is that it is not a book that will remain in your memory long after you have finished it as it lacks that particular spark that makes most of Mark Edward's books stand out. Nevertheless, it is perfect for a cool summer night and it is certain that you will not be disappointed.