Solid “Locked In” Mystery Asks Serious Questions. This is one of those “everyone is trapped in the house, and everyone has secrets” kind of mysteries that classic mystery lovers will love, and newer mystery lovers that are all about the shock value/ twist… eh, your mileage may vary. I personally thought the ending was particularly well done and while not *overly* shocking in *who* was involved, was brilliantly executed in *why* they were involved. Which gets to the whole “asks serious questions” bit, as the “questions” indicated in the description… are *NOT* the only questions raised. This book has a lot of meat there for those who *want* a deeper psychological dive, particularly in probing their own consciences – but it also offers enough directly in the text that if all you want is a few hours of classic mystery escapism… that is all you have to take from this particular tale. Which is usually a sign of a particularly strong storyteller, when they can give both readers what they want in the same story. This was my first book from Cross, and most likely will not be my last. Very much recommended.