This Strange and Familiar Place by Rachel Carter
So Close To You Trilogy, Book 2
In the second book of the So Close to You YA trilogy, Lydia Bentley has discovered that the conspiracy theories about the Montauk Project, the ones her grandfather had told her about all her life, were true all along.
The little town on Long Island really is the Area 51 of the east. Lydia’s hometown has been the site of government time-travel experiments since World War II. Among the “recruits” the Project has used as subjects in these experiments are two members of Lydia’s own family, and Wes, the boy she loves.
What is Lydia willing to sacrifice to save them?