“Sabrina Thomas clutched the leather-bound notebook to her chest and tried not to be impatient as the elevator in the south tower of Texas Hospital near downtown Dallas stopped once again on its climb to the eighteenth and top floor. But it was difficult.Dr. Cade Mathis, the bane of her existence, would reach Mrs. Ward’s room first and then there’d be hell to pay. Sabrina jabbed the button to close the doors as soon as the last person stepped onto the already crowded elevator.”