All The Little Graces by Eleanore MacDonald

It is the spring of 1990. A young American family boards a ferry, traversing the vast Aegean blue into the Greek archipelago in pursuit of four months of sun, sea and adventure ... but just as they begin to settle on an idyllic whitewashed island Eleni, Harry and 12 year old Lily come face to face with the loud, scruffy stray who shatters their peace - and their plans. Of course, tender Lily is drawn to the little dog, boldly protecting her three young pups, and in the wake of their first meeting trust begins to take the place of fear. Life for the animals of the island's streets begins to change.