In 1989, Claire Dellamare disappeared from her own fourth birthday party at the Hotel Tourmaline on the island of Folly Shoals, Maine. She showed up a year later at the same hotel, with a note pinned to her dress but no explanation. Nobody knows where Claire spent that year - and until now, Claire didn’t even know she had ever been missing. But when Claire returns to the Hotel Tourmaline for a business meeting with her CEO father, disturbing memories begin to surface...despite her parents’ best efforts to keep them forgotten.

After her husband, Jack, dies in a climbing incident, Shauna has only her five-year-old son and her helicopter charter business to live for. Every day is a struggle to make ends meet and she lives in constant fear of losing even more than she already has. When her business partner is murdered, his final words convince Shauna that she’s in danger too. But where can she turn? Zach Bannister was her husband’s best friend and is the person she blames for his death. She’s barely spoken to him since. But right now he seems to be her only hope for protecting her son.

Jane Hardy is appointed interim sheriff in Pelican Harbor, Alabama, after her father retires, but there's no time for an adjustment period. When her father is arrested for theft and then implicated in a recent murder, Jane quickly realizes she's facing someone out to destroy the only family she has. After escaping with her father from a cult 15 years ago, Jane has searched relentlessly for her mother - who refused to leave - ever since. Could someone from that horrible past have found them?

Sometimes, Kaia Oana thinks her dolphins are more humane than humans. As a mammal intelligence researcher, Kaia has learned a thing or two about the goodness and intelligence of dolphins - and as a natural scientist in close proximity to weapons developers, she's learned a thing or two about humans as well. When a tourist catamaran explodes off the coast of the Hawaiian island of Kauai, Kaia and her trained dolphin, Nani, rush to aid the search and rescue effort. After hours of searching, an exhausted Kaia is pulled from the water by Lieutenant Commander Jesse Matthews of the US Navy.

It’s been months since the crash. K-9 search-and-rescue worker Bree Nicholls knows the chances of finding her husband and son in the vast wilderness of Michigan’s Upper Peninsula grow more remote by the day. But her heart and her faithful dog, Samson, demand she keep searching. Deep in the woods a young boy wakes in a tiny cabin. He’s being nursed back to health by a reclusive woman, but he can’t figure out why she calls him by a name he doesn’t recognize. Or why she’s calling herself his mother. He wants to leave, but as winter sets in, his very life depends on her care.