Child by Chance (Harlequin Super Romance Series #1966)

Will her secret tear them apart? 

At sixteen, when Talia gave her son up for adoption, she knew she was making the right decision. Now, as an adult, she's come home to Santa Raquel, California, where she volunteers at the Lemonade Stand and provides art therapy at local schools. One of her students is a troubled boy named Kent—the son she gave up all those years ago! 

She meets his widowed father, Sherman, and they develop an intense connection through their shared concern for Kent. But Talia wonders if the secret she's been keeping might drive away the man she's starting to love.