Mysterious Millionaire (Harlequin Intrigue Series)

Liz Norton's part-time P.I. gigs were run-of-the-mill custody disputes--until she went undercover on the wealthy Crawford estate. Posing as an unobtrusive housekeeper in what was supposed to be a routine case, she soon found herself in serious danger. But with a dead body on her hands and feuding relatives pointing fingers, the only one she could turn to was Ben Crawford--an enigmatic, single father fighting to keep his young daughter. Except joining forces with the ruggedly handsome businessman only made her yearn to drop the charade, which could prove fatal, with a killer prowling the darkest corners of the mansion....