Heidi Betts is a USA Today best-selling author with a skill for penning deeply passionate romances. In Her Little Key, His Hidden Heir, millionaire Marcus Keller is definitely pleasantly surprised to perform into Vanessa, his ravishing ex-wife, but he’s surprised to find the boy she’s been keeping from him. He’s motivated to play a part in his son’s lifestyle, but while Vanessa expects it to become firmly business, Marcus entertains a secret agenda — earning Vanessa back for good.