The Trouble with Sisters — Lucy Gilmore

Sisters Beatrice and Katie Williams have nothing in common except for their love of their grandmother, Mimi. However, when Mimi dies and leaves them a family heirloom ring said to bring true love to whoever wears it, neither one of them wants anything to do with it. Beatrice is in a messy affair with her married boss, and Katie is determined to leave her past -- and the man who ruined it -- behind her.

Unfortunately, the ring has other ideas. As the sisters play Hot Potato with an object they're both rapidly coming to believe is cursed, the men in their lives rise up with declarations of love, plans for the future, and a whole lot of romantic nonsense they're better off without. Beatrice just wants to be left alone to pursue her career, and Katie… well. Katie hasn't figured it out yet, but she could if Beatrice would just cut her some slack.

When the ring is discovered to be a fake, the sisters realize that their grandmother's machinations to bring them closer together runs much deeper than they ever knew…and that love, in all its forms, has always been right within their reach.