Again by Annie Truro

What would it be like if you had a chance to go back to high school all over again?
When forty-five-year-old Maddy Waterfield moves back to the town where she went to high school in the eighties, she’s happy to be living near her friend Franny but is painfully aware of how stagnant her life has become. And memories of Andy, the boy she had a crush on in high school, are everywhere. He died in a freak train accident during their senior year, an accident that altered the course of Maddy’s life.

Then she stumbles across a time travel portal in a record store—and everything changes.
Now Maddy has a chance to prevent Andy’s death and change the course of her life in the process.
There’s just one problem: she’s terrified of taking risks.

She also finds herself drawn into a reluctant alliance with Charlie (her annoying chemistry lab partner from their junior year), who uses time travel to change his own life. Despite her worries about what might happen if she alters the past, Maddy starts to pay attention to what Charlie is doing… and to Charlie himself.

Part romance, science fiction, and thrilling heart-stopping adventure—and steeped in eighties music and cultural references—AGAIN is about love, longing, and the possibilities of second chances.