Thea's friends the Thea Sisters take off for Australia tosolve a mystery. A flock of sheep at Nicky's family's ranch islosing all its wool, and the ranch depends on the wool to stayafloat! Maybe the sheep's cure lies in an Aboriginal medicinecontaining a strange root. The five mouselings set off on a tour ofthe whole country to find out. It's a truly memorable outbackadventure!
