It stopped raining in Australia. Norbert de Guiville, a criminal art collector, stole the statue of opossum from the Aborigines and brought it to Europe. The opossum is crying - and it doesn't stop raining in the northern hemisphere. There are flooding everywhere. Kaloo-Log, an Australian medicine man, contacts Spirou and Fantasio and the Count of Champignac explains the relationship. The trio are able to take the statue back and an Australian ethnologist brings it back to the Aborigines. As a result the sun is shining in Europe and it is raining in Australia.
—Anonymous