Cassidy Cayman - Belmary House Book One

Tilly Jacobs was going to spend an uneventful month in London helping her nerdy history buff cousin to catalog priceless antiques in a mansion that’s slated to be torn down.
When a Regency era earl mistakenly drags her into his century, she thinks she’s in for the best vacation of her life. All she has to do is enjoy the scenery, which includes the hunky Lord Ashford, until he can get her back.
She doesn’t count on a murderer being after them, or the fact that if the house gets destroyed, so do her chances of ever getting home. Least of all, she doesn’t count on the undeniable attraction she feels to the mysterious and brooding Lord Ashford, or the fact that the longer she stays with him, the less she wants to fight it.