Librarian Beryl Blue shelves books in her hometown library. Dull, but after being orphaned and years in foster care, she prefers the mild life. Until a time cop from the future crash lands in her library with an offer Beryl isn't allowed to refuse—she must stop a time traveling assassin from killing a WWII soldier on leave and changing history forever. Whisked to 1943 and stranded there, told to keep Sgt. Tom "Sully" Sullivan safe at all costs, Beryl soon learns two things: Sully's more than capable of taking care of himself and it's her heart that's in danger. The more time she spends with the sexy, stubborn sergeant, the more she comes to care for him. She's lost everyone she's ever loved and there's no way she's going to open herself to loss again. Best to complete the mission, return to her own time, and never see Sully again. If she can get the job done. With an assassin on their heels and all of history on her shoulders, Beryl scrambles to figure out how to protect a man who refuses to be protected—and keep her heart intact.