Sophie's Return: Book Two of Zach's Story

Zach Brinkley comes home from hospital, bringing with him the otherworldly friends who helped him thwart The Goose. They and Sophie Ferguson pledge to help earthbound spirits seeking peace.  A case presents itself on a school excursion to the abandoned railway tunnels beneath Bottleneck Bay.  Here Sophie meets the troubled spirit of a young man from her past ... her past in another life.  In trying to help him, she places herself in mortal danger. Will Zach, the twins and Astra be able to save her?