Secret Sister

"To their friends, Nick and Cathy Chance have the perfect marriage. High school sweethearts who've been together for ten years, they've weathered challenges and are as committed as they were when they first fell in love. Cathy trusts Nick, Nick's world revolves around his wife, and the future looks golden. To everyone who knows them, Cathy Chance and Roxanne Ruiz have a perfect friendship. They connected in grade school and since then have been each other's confidant and trusted advisor. Cathy loves the gorgeous Roxanne like a sister, Roxanne has fun-loving Cathy's back in every situation, though lately there's been tension between these two best friends. And then, on a sunny summer morning, the unthinkable occurs, throwing into doubt the truth of what each of these people really know about themselves and one another..."--Amazon.com description.