The Case of the Swirling Killer Tornado is the 25th book in the Hank the Cowdog series by John R. Erickson. Interesting save session of Hank. This time it was an attack by an invisible enemy, what did Hank do to protect the people on the farm. His family had swirled into the storm cellar, Hank and Drover were trapped in the house, what did they do to escape from this place.
