Mara, Sadie, and Hannah are friends first, scientists always. Though their fields of study might take them to different corners of the world, they can all agree on this universal truth: When it comes to love and science, opposites attract and rivals make you burn….

Viola Bowen has the chance of a lifetime: to design a video game based on her all-time favorite book series. The only problem? Her co-lead is Jesse F-ing Andrews, a.k.a. her arch-nemesis. Jesse has made it abundantly clear over the years that he wants nothing to do with her–and Viola has no idea why. When their bosses insist a wintery retreat is the perfect team-building exercise, Viola can’t think of anything worse. Being freezing cold in a remote mountain lodge knowing Jesse is right next door? No, thank you.

Chandler Cohen has never felt more like the ghost in "ghostwriter" until she attends a signing for a book she wrote—and the author doesn’t even recognize her. The evening turns more promising when she meets a charming man at the bar and immediately connects with him. But when all their sexual tension culminates in a spectacularly awkward hookup, she decides this is one night better off forgotten. Unfortunately, that’s easier said than done.

Like an avenging, purple-haired Jedi bringing balance to the mansplained universe, Bee Königswasser lives by a simple code: What would Marie Curie do? If NASA offered her the lead on a neuroengineering project—a literal dream come true after years scraping by on the crumbs of academia—Marie would accept without hesitation. Duh. But the mother of modern physics never had to co-lead with Levi Ward.

Rue Siebert might not have it all, but she has enough: a few friends she can always count on, the financial stability she yearned for as a kid, and a successful career as a biotech engineer at Kline, one of the most promising start-ups in the field of food science. Her world is stable, pleasant, and hard-fought. Until a hostile takeover and its offensively attractive front man threatens to bring it all crumbling down.

Wells Whitaker was once golf’s hottest rising star, but lately, all he has to show for his “promising” career is a killer hangover, a collection of broken clubs, and one remaining supporter. No matter how bad he plays, the beautiful, sunny redhead is always on the sidelines. He curses, she cheers. He scowls, she smiles. But when Wells quits in a blaze of glory and his fangirl finally goes home, he knows he made the greatest mistake of his life.

Aurora De La Torre, or Ora to her friends, knows moving back to Pagosa Springs, Colorado, a place that was once home and is now full of bittersweet memories of her late mother, isn’t going to be easy. Starting your whole life over probably isn’t supposed to be. But after breaking up with her longtime famous musician boyfriend, hiding out in a small town in the mountains might be the perfect remedy for a broken heart. And checking out her landlord who lives across the driveway just might cure it, too. Only Tobias Rhodes didn’t rent out the apartment to her, rather it was his teenage son, Amos.

Noah and Mia have always been best friends, and their friendship is the most important thing to them. Life is going great for Noah and he’s up for a promotion in a job he loves. But Mia’s life is on hold as she awaits a kidney transplant. She’s stuck in a dead-end job and, never wanting to be a burden, has sworn off all romance. So when the chance of a lifetime comes to go back to school and pursue her dream, it’s especially painful to pass up. She can’t quit her job or she’ll lose the medical insurance she so desperately needs.

In her teenage years, lovelorn Jessica Gold cast a spell that went disastrously wrong, and brought her all the wrong kind of attention—as well as a lifetime ban from the World Council of Witches. So no one is more surprised than Jess when, fifteen years later, tall, handsome WCW member Derrick Winters shows up in her quaint little village of West Harbor and claims that Jess is the Chosen One.

Mallory Greenleaf is done with chess. Every move counts nowadays; after the sport led to the destruction of her family four years earlier, Mallory’s focus is on her mom, her sisters, and the dead-end job that keeps the lights on. That is, until she begrudgingly agrees to play in one last charity tournament and inadvertently wipes the board with notorious “Kingkiller” Nolan Sawyer: current world champion and reigning Bad Boy of chess.