Você está descrevendo o " Quarteto da Time Travellers " de Caroline B. Cooney.
Annie Lockwood is watching her boyfriend, Sean, while he fixes his car, and she questions whether or not this is the right relationship for her. Then later, while she looks through the amazing Stratton Mansion she is wrenched from her time (approximately 1995) back 100 years into the past. In this past, she meets the inhabitants of the house, including a young man named Strat [Lockwood Stratton]. Murders happen in the house, and Annie soon falls in love with Strat, and she ends up going back and forth between the two time periods, But where will she end up? And with whom?
No segundo livro, Strat acaba em um asilo de loucos
While in New York, she slips back one hundred years into the past, only to discover her one true love, Strat, was put into an insane asylum. He was put there because he insisted Annie was real, even though she mysteriously disappeared and everyone else decided to forget her existence
