Before becoming a writer, Linsey was an archaeologist who studied shipwrecks in all kinds of water, from the tropics to muddy rivers (and she has a distinct preference for one over the other). After a decade of tromping around in search of old bits of stuff, she settled down to started penning her own adventure novels and is freaking delighted that people seem to like them. Since life is better with a little (or a lot of) magic, she writes urban fantasy and paranormal romance.
Her dedication of the book Rebels and Traitors (2009) reads: "For Richard / dearest and closest of friends / your Favorite book / in memory", and the author's website relates: "I am still getting used to life without my dear Richard. For those of you who haven't seen this before, he died in October ". The author says in her publisher's newsletter: "The greatest recommendation I can give is that Richard, its first reader, thought it wonderful. He devoured chunks, demanding ‘Bring more story!’ even when he was in hospital. One of the last things I was ever able to tell him was that Rebels and Traitors was to be published by Random House, so I would be working with dear friends for his Favorite book."
Linsey Hall suffered from the eye condition keratoconus from childhood, and in adulthood had a corneal transplant, about which she has said: "A stranger's generosity freed me from years of pain and anxiety", and urges her readers to carry a donor card.
Her first title, The Ides of April was published on 11 April 2013 in the UK, and its sequel, Enemies at Home, was published in 2014, followed by annual additions, the latest as of 2020 being The Grove of the Caesars. In an interview in 2019 Davis discusses her successful plan to write a novel set on each of the seven hills of Rome, starting with the Aventine Hill and culminating with the Capitoline Hill.