Kirkus
Copyright © Kirkus Reviews, used with permission.

Possibilities and parallel lives collide in this debut novel about frustrated marriages, hidden desires, and environmental disaster.When an emergency room pager disrupts Ginny, an ambitious surgeon, from her nighttime routine, she's surprised to look over and suddenly see her colleague Edith lying in bedinstead of her husband, Mark. "Ginny smells warm skin and damp sheets; she hears her own quickened breath....The woman reaches out, as if to stroke Ginny's hair. Then, in an instant, she's gone." Startled by this vision, Ginny seeks medical answers even as she pursues the desire it revealed. Meanwhile, Mark, an environmental scientist, struggles to gain the respect of his colleagues, who dismiss his obsessive research "on the connection between geothermal activity and animal behavior." (Perhaps it's because he gives his research project an unfortunate acronym: DAMN.) Compelled by an impending sense of doom he can't explain, Mark dives into the "prepper" communities of the Pacific Northwest and begins to build a backyard survival shelter for his family. Woven through the story of Ginny and Mark's crumbling marriage are the lives of their two neighbors, Samara, a young real estate agent still reeling from her mother's untimely death, and Cass, a young mother struggling to regain her footing as a philosophy Ph.D. after the birth of her daughter. Broken Mountain, a dormant volcano that "rises...misty green" above the town of Clearing, Oregon, looms over them allgiving off tremors that bring on visions of alternate realities. Day's first novel recalls the philosophical headiness of a TV show like Lost and remixes this sensibility with the chronological playfulness of Cloud Atlas or Atonement. But, until the story really takes off, the emotional stakes of the novel are lowand the prose feels flat and inert, almost like stage directions. There are more affecting moments in the second half of the book, like Samara's attempt to buy back her mother's effects from Goodwill: "The mound of miscellaneous things has grown almost as tall as she is. It looks heavy and dark and sad. You don't really want all that stuff, her mother's voice says. It was mine, and I didn't even want it." With all the atmospheric mist crowding out its emotional center, this book's heart is difficult to locatebut the occasional glimpses show promise.A suburban drama built to leap from page to screen. Copyright Kirkus Reviews, used with permission.

Publishers Weekly
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The lives of three neighboring families in Clearing, Ore., become inexorably entwined in Day's captivating debut novel of parallel worlds. Dr. Ginny McDonnell, a surgeon, feels disconnected from her son, Noah, and her husband, Mark, a behavioral ecologist convinced that nearby Broken Mountain, a volcano, isn't quite as dormant as many believe. Realtor Samara Mehta is still reeling from her mother's death on the operating table and blames the surgeon, Ginny. Cass Stuart is taking a break from earning her PhD in metaphysics to care for her baby girl but longs to continue her research on the theory of everything and the possibility of a multiverse. Cass, Ginny, and Mark start to glimpse different versions of themselves and Samara of her mother, preceded by a bad taste and a trembling under their feet, while Broken Mountain awakens nearby. Often, Day seamlessly slips readers in and out of realities with little warning, and the scenes in which characters observe and, at times, interact with, their alternate realities are intimate, eerie, and startling, such as Mark's encounters with the wild, disheveled man he dubs "Other Mark." Effortlessly meshing the dreamlike and the realistic, Day's well-crafted mix of literary and speculative fiction is an enthralling meditation on the interconnectedness of all things. (Mar.) © Copyright PWxyz, LLC. All rights reserved.

Book list
From Booklist, Copyright © American Library Association. Used with permission.

Day's complex debut explores the mind-bending idea that for every decision made, alternate choices lead to different lives. Four neighbors, living at the foot of a dormant volcano in a peaceful Pacific Northwest community, experience a series of unprecedented events. Those incidents will weave their lives together in unexpected ways. Each is suffering from loneliness, loss, resentment, disappointment, and frustration: a successful surgeon too wrapped up in her job, her research-scientist husband seeking acceptance, a new mom longing to complete her abandoned Ph.D., and a grieving daughter reluctantly taking up the life her mother left behind. They all begin having visions, what if scenarios of how their lives could be if another choice is made. The options are tempting, and each decides to follow that different course, some for the better, others falling prey to dangerous obsession. When those paths start intersecting, and the mountain starts to rumble, everyone will wonder if their choice of another life is real or simply a delusion. Multiverse-theory fans will enjoy the speculation offered in this novel.--Lucy Lockley Copyright 2010 Booklist