She is the author of the 2010 novel "Eighteen Acres" (a reference to the 18 acres on which the White House complex sits), a fictional narrative about three powerful women at the top of their careers: the first female U.S. President, her chief of staff, and a White House correspondent. Wallace said, "It's my best attempt at a story that I hope people will pick up and read and enjoy and maybe feel like they're getting to see what it's really like in the White House in this entirely fictional story."