Fireflies by Matthew Barber

Retired schoolteacher Eleanor Bannister lives a quiet life alone in tiny Groverdell, Texas, and is set in her routine, and secure in her position as the town’s most respected woman. A hole in her roof draws the attention of Abel Brown, a smooth-talking drifter intent on renovating Eleanor’s house, and possibly her life. It’s a well-told story of tentative, late-life love.