Ninety days. One lighthouse. And the life she swore she'd never come back to.

Boston architect Tessa Merrick is one signature away from making partner when a letter from Maine stops her cold: her estranged grandmother has died ? and left her Merrick Light, the tower her family kept for five generations. There's one catch. To claim it, Tessa has to live on the point for ninety days. To sell it, she only has to last the summer.

Cal Hale is the contractor hired to bring the lighthouse back ? a widowed single dad with careful hands, a strict policy about women with one foot out the door, and a seven-year-old daughter who draws lighthouses with the light already on.

But the town remembers Tessa even if she'd rather forget. A small artist has decided she's staying. A golden retriever keeps voting with his paws. And in a locked cupboard at the cottage, eleven years of unsent letters are waiting to tell Tessa what her grandmother never could.

As the centennial festival draws near and the tower comes back to life, Tessa must choose between the career she built and the light she was born to keep.

A sweet, clean small-town romance about second chances, found family, and the only kind of holding on that's worth anything.