Yarri: Accidental Histories SeriesYarri and Jackey Jackey sat in the hollowed out trunk of a huge, old gum tree on the top of Mount Parnassus. They looked down to Gundagai through the heavy rain. The river had swollen and the town was in trouble. But what could they do? Halstead Press presents Paul Ashtons series of short texts designed to integrate with the Australian Curriculum for Humanities and Social Sciences and English, each focussed on the role that accident and serendipity