Marginalia

A true-crime-obsessed grad student finds murder confessions in the margins of library books — then they begin predicting crimes that haven't happened yet.

Book one of a five-book dark-academia thriller series. Quinn Adler has built a life out of the questions nobody else wants to ask. What she finds pencilled into the margins of a library book should have been the end of an old case. Instead it's the beginning of something still being written.