(Sorry this is a little late. Reviewing all the new TV shows is eating my brain.)
Frankenstein by Mary Shelley: I read this partially because of Frankenstein M.D., and it made me very worried about what's going to happen on the show. But anyway. This was very good, which I expected, but also very different from what I expected, somehow. It's clearly an essential book in a history-of-literature contextual way, but it was also an entertaining and surprisingly quick read. Give it a try, if you haven't!
Out of the Deep I Cry by Julia Spencer-Fleming (Rev. Clare Fergusson/Russ Van Alstyne Mysteries #3): This was a strong entry in the series, with a mystery that spanned generations and yet all tied together in a satisfying way. Clare is a compelling, complex main character, and her relationship with Russ is developing in an interesting and somewhat unexpected - if excruciatingly slow - way.
Emily of New Moon by L.M. Montgomery (Emily Byrd Starr #1): An old favorite, reread this month for book club. Still love it!
Conversion by Katherine Howe: This one enthralled me from the start, with its combination of an historical Salem witch trials story and a contemporary mystery involving an outbreak of what seems like hysteria at a girls' prep school. I was slightly surprised to find that I liked the modern sections better - the historical chapters were fine, but I was always eager to get back to the modern story, and I think that's mainly because this was one of the most realistic-feeling portrayals of high school that I've read recently. I was also extremely impressed by both the book's fluency with social media - I don't think I've ever seen the term "subtweet" casually used in a novel before - and its depiction of a New England winter; it got the constant on-and-off of boots and coats exactly right.
The Iron Trial by Cassandra Clare and Holly Black (Magisterium #1): First of a very promising new series. Compelling, diverse characters, interesting magic system, and plenty of plot twists. Plus boarding school! I love boarding school books. Can't wait for the next one.
Unmade by Sarah Rees Brennan (The Lynburn Legacy #3): A perfect end to the trilogy. Hilarious, heartbreaking, swoony. I already can't wait to reread them all. I don't want to say anything specific and risk spoiling the earlier books, because I want you all to read them. Start with Unspoken.
(Disclaimer: I know Sarah Rees Brennan, Holly Black, and Cassandra Clare. All books this month were either purchases or from the library.)