Book 6 in a series of 8 books
 
A sky-high adventure leads to danger�Now that Grandfather has died, Patrick McWaid and his family must navigate the Murray River alone. Nearing the port of Wentworth, they spot a colorful hot-air balloon floating above the town. Michael, eager for a closer look, rushes from the paddle steamer as soon as chores area done. Patrick hurries after his little brother, but the balloon accidentally launches with Michael aboard, and Patrick�s split-second decision puts them both in danger!
 
Soaring away from town, Patrick, Michael, and the balloonist spy a strange creature below. The balloonist says it�s a bunyip�the legendary half-man, half-monster the aborigines have feared for hundreds of years. A crash landing is their only choice, but they�re headed straight for the bunyip�s hideout! Worse yet, a firestorm is approaching, and Patrick and Michael must warn the townspeople. Can they escape the bunyip in time?
 
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