When four women from different walks of life are brought together by fate to witness the end of the world as they know it, each must find a way to survive against the odds as well as learn to rely on each other.   

Riley Beckett met Gianna Mäkinen-drop-dead gorgeous influencer, trilingual, daughter of world-famous models, yes, that Gianna Mäkinen-their first year at Boston University, and it changed everything for the both of them. After all, when you find the person who just gets you, nothing feels quite "the same" right?

Ellie Fisher loves most things about being a nurse in the emergency department . . . just not working with Regina Novak, an icy attending physician who acts as if she's God's gift to medicine. The dislike is completely mutual. Regina thinks Ellie is a starry-eyed romantic with a sentimental attitude that has no place at work. When Regina gets talked into volunteering at a singles auction, Ellie accidentally bids on her—and ends up winning. Oops! Since the money raised is for a good cause, they reluctantly decide to go through with the dates.

The daughter of an actress superstar, Ashley Landish wants nothing more than to simply run her popular coffee shop on the Venice Beach boardwalk and enjoy the sun and beaches of beautiful Southern California. There is only one thing missing in her life—someone special to take her breath away. Marine Corporal Bryce Cooper is home on leave after taking care of her father in his last days. Although the Marine Corps is calling, she has a new outlook on life, leaving one last box to check—to tell the woman she knew in college, Ashley Landish, that she loves her. 

Just back from her second tour in Afghanistan, NYPD Detective Chiara Corelli goes undercover to expose a ring of dirty cops. But when she's ordered to kill to prove her loyalty, she aborts the operation without having identified the leaders. Now, Corelli is the one exposed. With her brothers and sisters in blue ostracizing her, can she trust Detective P. J. Parker to watch her back?

Hannah Martin has an unusual job: she's a professional cuddler. While she has a big heart for her clients, she hasn't found someone special to snuggle up to in her personal life. Winter Sullivan isn't looking for love. She's an aloof workaholic who's built walls of ice around herself. She would rather drive toothpicks under her fingernails than cuddle, and she certainly doesn't want to share her space with anyone. When Winter's estranged father dies, he leaves her one last surprise: she and Hannah, a perfect stranger, will inherit a building together.

After the death of her grandmother, reluctant heiress Madilyn Marak agrees to stay with her grandfather at the estate for the summer. There, she finds an old diary hidden in an antique desk in the attic—The Apple Diary—written by her great-grandmother Isabel. In there, she finds the love story of Isabel and Lorah, along with a photograph of the two young women from 1933. The diary, like the love affair, was short and brief, but rich and vivid enough for her to feel a true bond with the women despite the heartbreaking ending.

Boston Homicide Detective Caitlin Reagan walks a razor's edge, propping up her life on emotional constructs designed to help her manage grueling PTSD. She keeps her mother, boyfriend, and work separated and controlled, all in service to one horrible, tragic act she committed amid the Iraq war.

Emilia Drakon was once the youngest and kindest of the dragon sorcerers, but she's now the last of her kind. Betrayed and angry, she trades her meekness for a sword and embarks on a quest for vengeance that will lead her straight into the arms of the legendary Captain Maria Welles. Captain of the famed pirate ship, the Wicked Fate, Maria is every bit as treacherous and bloodthirsty as they say. She has her own vendetta and practically jumps at the chance to trick Emilia into joining her crew.

With her betrothal imminent, the beautiful Princess Ava has gone missing. Where has she fled to? Why has she gone? And why is the dragon stirring? Enter our hero. Gwen has been hunting wanted criminals for years, collecting bounties to provide for her mother and brother since the death of their father. The promise of an armful of gold for bringing the princess home is too good to ignore. But bringing her home doesn't solve anyone's problems. Gwen still has family to support, and Ava still has a miserable marriage to look forward to.