Shane's Deal (Montana Collection #4)
Ruth Ann Nordin

When Marshal Shane Taft discovers Madeline’s true identity, he knows only a desperate woman would take such a big risk in traveling through the wild territory of Montana without a chaperone. That alone prompts him to protect her. Finding out she’s recently widowed and is carrying a child prompts him to propose marriage.
Madeline’s first husband left a lot to be desired. Besides thinking women had nothing worthwhile to contribute but an heir, he was cold toward her. She would say no to the deal Shane is offering, but necessity forces her to marry him. Nothing good can come from being under another man’s thumb.
That is, of course, unless he happens to be the right man.