Astoria Rumors - The Get Eaven Series, #1

Homeless, broke, and replaced by a younger woman, Eaven Alexander must resurrect the career she'd abandoned in disgrace if she's to survive. Her degrees in historical architecture and antiques attract a lucrative but questionable job offer to locate an important document inside a decaying mansion. Too late, she realizes that something insidious is lurking beneath Astoria's idyllic façade. And that no one is who they claim to be.