Truly Devious by Maureen Johnson is a book that I had high expectations for, since it seemed like exactly my kind of book: boarding school thriller. I don’t have much experience with Maureen Johnson’s books, but after reading this one, I will definitely have to check them out. This book contains two connected mysteries and many peculiar characters. I enjoyed the use of flashbacks, which is not a common occurrence, and the shocking plot twists. The ending bothered me, but I am all the more excited for the next instalment.