Time Travelers Quartet is a series of four young adult time-travel romance books by Caroline B. Cooney.
Annie Lockwood is going on a school field trip to New York City one year after she has returned to her time in 1995 after meeting Strat.
While in New York, she slips back one hundred years into the past, to discover her one true love, Strat, has been put into an insane asylum.
Annie disguises herself as Devonny and manages to get past obstacles that were in the way, especially Walker Walkley, Strat's former best friend and now antagonist of the book.
However, in a time when the role of women are to stay at home and please their husbands, Devonny soon finds herself engaged to a British noble she does not love nor respect.
With the family's business and reputation hanging in the balance, Devonny agrees to marry the noble, despite how she knows he is an avoidant person and she will be dominated by her mother-in-law.
With failed business enterprises and difficulty living up to Annie, Todd finds confidence only when he is coaching a girls' soccer team.
In the past, Devonny despairs at her circumstances, with the disappearance of her brother Strat and the death of her friend Harriet, hoping that at least Flossie will find happiness.
Annie Lockwood attends the new Ancient Egypt exhibit at a museum, where she hopes to find some clue as to Strat's survival.
Her pale skin, blue eyes and inability to speak Egyptian earn her the nickname "girl of ivory".
Their reunion is very short, and although Strat screams marriage proposals to the wind and runs after Annie, she still slips through Time.