All the Dangerous Things – Stacy Willingham  

Following up her instant New York Times bestseller, A Flicker in the Dark, Stacy Willingham delivers a totally gripping thriller about a desperate mother with a troubled past in All the Dangerous Things. 
 
One year ago, Isabelle Drake's life changed forever: her toddler son, Mason, was taken out of his crib in the middle of the night while she and her husband were asleep in the next room. With little evidence and few leads for the police to chase, the case quickly went cold. However, Isabelle cannot rest until Mason is returned to her—literally. 
 
Except for the occasional catnap or small blackout where she loses track of time, she hasn’t slept in a year. 
 
Isabelle's entire existence now revolves around finding him, but she knows she can’t go on this way forever. In hopes of jarring loose a new witness or buried clue, she agrees to be interviewed by a true-crime podcaster—but his interest in Isabelle's past makes her nervous. His incessant questioning paired with her severe insomnia has brought up uncomfortable memories from her own childhood, making Isabelle start to doubt her recollection of the night of Mason’s disappearance, as well as second-guess who she can trust... including herself. But she is determined to figure out the truth no matter where it leads. 

Cold People – Tom Robb Smith 

From the brilliant, bestselling author of Child 44 comes a suspenseful and fast-paced novel about an Antarctic colony of global apocalypse survivors seeking to reinvent civilization under the most extreme conditions imaginable. 
 
The world has fallen. Without warning, a mysterious and omnipotent force has claimed the planet for their own. There are no negotiations, no demands, no reasons given for their actions. All they have is a message: humanity has thirty days to reach the one place on Earth where they will be allowed to exist…Antarctica. 
 
Cold People follows the perilous journeys of a handful of those who endure the frantic exodus to the most extreme environment on the planet. But their goal is not merely to survive the present. Because as they cling to life on the ice, the remnants of their past swept away, they must also confront the urgent challenge: can they change and evolve rapidly enough to ensure humanity’s future? Can they build a new society in the sub-zero cold?