A lucida intervalla is a Latin phrase describing one of those startling "lucid intervals" experienced by the insane. Lucida Intervalla, as imagined by John Kinsella--the Australian poet and novelist--is an art journalist, artist, and social media sensation whose brilliant presence beguiles every one around her. Set in a post-apocalyptic world scarcely distinguishable from our own, Kinsella's new novel follows her exploits and thoughts...