One by One, by Ruth Ware
Moonflower Murders, by Anthony Horowitz
Crooked House, by Agatha Christie
One by One: This was disappointing, but to be honest, I just really loved The Turn of the Key. Probably anything after that would be a bit of a let down. I liked this well enough, and finished it in two days, but a few things stuck in my craw. (***Spoilers***) One, much of the suspense is from the storm, which was worse than expected, so the killer couldn't have planned on it. Second, one of the big events of the second half depended on a woman knowing her friend's phone number so she could call him from another man's phone. Who knows anyone's phone number? None of them had been able to charge their phones for two days, but his phone was turned on. I guess she could have turned hers on at the critical moment and had just enough power to look up that number in her contacts? But it doesn't say how she did it. It goes back and forth between two viewpoints, short chapters, goes by fast.
Moonflower Murders: Two books in one! This will be a good read for anyone who likes mysteries and/or books about books, because this has both. I'd read Magpie Murders first, although I couldn't remember that one in detail, but I remembered something of the two main characters. In this one, book editor Susan Ryeland, who had to solve a mystery involving author Alan Conway, finds herself back in England on another case. This time, she has to solve a mystery that Alan solved and wrote about, by reading his novel and trying to work out how his fiction relates to the real world. (Which, of course, is also fictional.) So, about a third of the way through Moonflower Murders, it stops and you get to read Atticus Pund Takes the Case. The solution to the case is hidden in the Atticus Pund book, which is loosely based on a murder eight years in the past. I liked both books, Atticus Pund and Moonflower Murders.
Crooked House: Pretty good. I needed something to read one day when I felt sick, and I wanted a quick read, but I wasn't in the mood for just fluff. None of my library books felt right, and then I remembered that my copy of Then There Were None had extra novels, and this was one. I saw the movie last year, and I thought it was very good. Honestly, maybe better than the book, which hardly ever happens, IMO. Good twist.