Thea Stilton and the Mountain of Fire (Thea Stilton #2)

A flock of sheep is losing its wool, threatening Nicky's family's ranch, which relies on wool for survival. The Thea Sisters embark on an adventurous journey across Australia to uncover the mystery, exploring the possibility of a unique Aboriginal medicine containing a peculiar root as the solution. Their quest takes them through the stunning outback, promising a memorable experience filled with friendship and discovery.