Trollz
Onyx's Gem (1x4)
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The BFFL girls discover that their belly Gem's are dimming. A quick fix they try is revealed to be a trick by ogre-dog Snarf (in drag!), who lures them into the Shadow World to free his master, Simon the Gremlin, from eternal incarceration. Only by working together can the girls escape Simon and bring the glow back to their gems.