She didn't want to marry Least of all a Viscount Marcella Cranmore wants to avoid marriage and continue using her mathematical expertise to help her railway engineer father--but her mother insists on her having a season. At her first ball, Marcella's relieved to see someone she knows, railway investor Crispin D'Aubignon. Conversing with the viscount is safe, for she's as off-limits to him as he is to her...except that...