Out of the Ashes (Tales of the Pacific #4)
Emilie Richards

For Matthew Haley, the remote destination is a place to hide, as well. A ranger at Flinders Chase park at the farthest reaches of the island, he can live in solitude and avoid confronting the pain of his past.
Then his new American neighbor brings him an injured koala, and Matthew finds that no matter how much he wants to, he can't escape Alexis or her enchanting nine-year-old daughter.
But while Matthew may find a way to put his past to rest, Alexis's may yet come back to haunt her.