Rainwater by Sandra Brown

Ella Barron is determined that even the ravages of the Dust Bowl will not affect the well-ordered life she has built for herself and her special child, Solly, who lives in a world of his own that even she can’t enter. Aware that he evokes pity and distrust, Ella holds herself aloof from her small community, but her new boarder, David Rainwater, comes into her life— and changes it forever. As economic desperation creates bitter social unrest in the town and surrounding farms, Ella finds herself relying on Mr. Rainwater’s soft-spoken advice and the steely resolve of his convictions. But tensions escalate in the summer heat, until one violent night everything they believe in will be put to the ultimate test.

Not the usual Sandra Brown, this is more. Not your usual happy ending to a love story, but a very poignant ending. Loved it.