The Best Man (Harper's Island #1)
Zane Morrow

Ever since her father died in the Persian Gulf, Grace has been spending her summers at Camp Hope. She began as a camper in need of help and healing. Now she's the director who gives back and is there for a new generation of campers. As she leaves to perform her duties as maid of honor at her best friend's wedding, she receives devastating news: Blake Morgan plans to close the camp at the end of the season.
The prospect of saving Camp Hope seems dismal at best, then she remembers: Blake Morgan will be at the wedding. After all, he's the best man.