Black Frost is book 4.5 in the Demon Accords series by author John Conroe. As such, this is a smaller book, only 114 pages in paperback. But it’s unique in that it largely ignores main characters, focusing on interesting subplots going on behind the scenes.

Following up on the quirky We are Bob, We Are Many finds the hapless Bob Johansson still dead, and his intelligence still powering space probes looking for habitable planets. But everything else has changed, including the loss of most of the rest of life on Earth.