The Vow (Books 1-3)

Because even a billionaire can't control how life will turn out, especially when desperate men are driven to desperate measures.
And when Tobias's vow to protect Savannah and Jacob is thwarted, she begins to question whether life with a billionaire is worth the risk.

Increasingly concerned about her son, Savannah pushes Tobias to the sidelines and becomes pre-occupied with Jacob's welfare. But Tobias always gets what he wants, and he is content to play the waiting game, secure in the knowledg...