Ghosts & Liars by Kathryn Ann Kingsley

All Alice wanted was a job. As the caretaker of the Strande Mansion, she got far more than she bargained for. Between trying to crack the code of the sinister Julian Strande and her new love affair with Charles, the current owner of the museum, she has a lot to balance.
Alice didn’t believe in ghosts. That was until she met Julian Strande. Unfortunately, it seems the legends of the ghost of the estate are all very real, and he seems to have become obsessed with her.
Charles has promised her that Julian is harmless and just playing pranks. That he enjoys the company after all those years alone. It’s too bad that Charles may not be all he seems…