While exploring the caverns of Hollow Hollow our heroes meet two strange creatures named Bang and Clang: The Bellringers of Argon. The bellringers are joined together by a single beard and argue with each other constantly. After Tracey separates the two by cutting the beard the Bellringers are indebted to Tracey, Wayne and Rog and that proves to be more than the trio can handle.
Sir Python and Molcaster devise an elaborate plan to lure our heroes into their lair by setting out fake Argon footprints. Wayne is the only one that falls for the snake's plan and is captured. With Wayne as prisoner they wait for Tracey and Rog to come to his rescue. They are trapped as well the necklace of Argon is stolen. Our heroes charm their way free with the help of exotic instruments sent to Tracey and Wayne by their father.
While looking for the Great Argon, Tracey, Wayne, and Rog enter the Thicket of Night. They are taken prisoner by the NightCrawler, a slimy creature on eight legs who makes them his slaves. Finally, with the help of a bumbling Sydney the Witch (who is after the huge deposit of Bhok crystals that resides in the Thicket) our heroes manage to escape.