New York Times best-selling author Chris Bohjalian appears at the Carnegie Library Lecture Hall, 4400 Forbes Ave., Oakland, at 7 p.m. as part of the Pittsburgh Arts & Lectures New & Noted series. Mr. Bohjalian, best known for the thrillers “The Guest Room” and “Midwives,” will be discussing his latest book, “The Sleepwalker” – the mesmerizing story of a wife and mother who vanishes from her bed late one night.