Miracle On Kaimotu Island by Marion Lennox
He loved her once, but now Ben McMahon just needs another doctor - and Ginny Koestrel is the only one around. Tragedy, however, has stalled Ginny's professional confidence and the only thing she clings to is a little girl called Button. Can Ben help Ginny rebuild her life without falling for her again? Will it take an earthquake to bring them back together?