The Drowning Pool (Worldwide Library Mystery , No 271)

At 44, career woman Willow King is about to become a mother for the first time. More used to working--and sleuthing--than changing diapers, Willow welcomes the chance to investigate the death of her obstetrician. But as the sleuth gathers the clues, she finds that a nervous killer will do anything--including murder--to keep a secret.