MacMillan, 2025, 347 p. Reviewed for ParSec 13.

Twenty years ago the Soundfield appeared overhead. Ever since, temperatures have continued to soar, UV radiation makes going out in daylight all but deadly, food is short, parts of the world up to and including Italy are devoid of humans, and refugees are countless. People in Britain now sleep during the day and carry out whatever business they can at night.
Hannah Williams lectures on genetics at a college but her life is complicated by her son, Isaac, who cannot speak, only sign, must be kept occupied and also looked after by someone else if she is busy.
They are living in a dystopia. The Government is essentially authoritarian, dissenters can be shot, (refugees have been in the past when trying to come ashore,) agents of the Atavism Programme are ever vigilant, looking for children who connect with the Soundfield’s constant hum and its occasional musical calls. Isaac’s tendency to sing at these moments is why Hannah is so protective of him. She does not wish to lose him to the Programme. (How Isaac can sing when he can’t speak is unexplained.) The ongoing story of their lives in this harsh world has its menace heightened by the author’s use of the present tense. The passages where Hannah remembers her past life, before the Soundfield and when she was part of the first investigations into it, are in the past tense. Hannah’s part in that investigation was carried out in collaboration with a team led by Elias, a physicist, with whom she had a relationship.
Examination of the field showed it to contain the components of air, in the normal proportions, but also small dust particles, inert minerals and silica, some bacteria and fungi, “as if a microscopic layer of the ground had been scooped up and held in suspension thirty kilometres up, creating a dome that sealed the Earth.” Video footage revealed it to be moving, like waves. “A thin taut membrane that vibrates thousands of times a second.”
Hannah’s lectures centre on the FOXP2 gene. This is usually invariant and has been for millions of years – except for the (relatively) recent two changes which coincided with the development of language in humans.
Her breakthrough in trying to understand the Soundfield came with studying the EK family, who all had developmental verbal dyspraxia. In them, one of the bases on the FOXP2 gene had reverted to its previous state.
This is an unusual piece of SF as writers in the genre do not usually consider the evolution of language nor its connection to music. Through Hannah, Martin tells us language and music are combinatorial, made up of individual units that stack together to give new structures, but are also recursive and innate. But as Hannah says to Elias, “We are biologically programmed to speak, but also to listen to and produce music.” She suggests speech and music co-evolved from a musical protolanguage and wonders if that might be what the Soundfield is producing. The publishing of her results, though, is the trigger for the Atavism Programme and Hannah’s present predicament.
The dystopian aspects of the novel are reasonably similar to other works in that vein (autocracies do tend to be similar in their repressions, as are people’s reactions to them) but Martin combines them with a concern for family and relationships. As in all human interactions, though, betrayal and jeopardy are never far away.
The following did not appear in the published review.
Pedant’s corner:- “on his hoody” (usually spelled hoodie, as it is later in the book,) “of the front frow” (front row,) “much more hands-on that it used to be” (than it used to be,) “a man with a short beard wearing a bullet-proof vest” (why would a beard wear a vest? Try ‘a short-bearded man wearing a bullet-proof vest,) “the old stationary store” (stationery store,) “‘what do you parents do?’” (do your parents,) “outside of” (x 2, just ‘outside’ no ‘of’,) “‘there was only once choice’” (only one choice,) “in Elias’ team” (Elias’s – which appears later,) phenomes (the passage was about phonemes,) sat (several times; ‘sitting’,) span (spun,) focussed (focused,) “in the middle of wide, open room” (of a wide, open room,) “‘to make sure your safe’” (you’re safe.)