Spirou has to go to the obvious in front of the photos of the Marsupilami offered by Don Contralto (at the end of volume 54): he has no memory of this adventure. And Fantasio no more than he. As for the Count of Champignac, he enters into terrible angers as soon as one evokes the small animal with prehensile and blunt tail. All this can only have one explanation: they were zorglonded to make them forget that they were one day the friends of the Marsupilami. After a short investigation, Spirou and Fantasio find Zantafio, exiled in Canada, and make him spit out the song. Fantasio's evil cousin admits his package: he used the zorglonde to be able to approach the Marsupilami without risk... and sell it to a rich collector! Spirou and Fantasio (and Spip) decide to go to Palombie to find him. But with the Indians Awaks, a Marsupilami furious of this betrayal and a guide as machiavelic movement.