There's a whole, invisible city suspended over Bigburg, inhabited by all kinds of monsters! Zick wants to go there to ﬁnd a way to defeat Mr. Magnacat, but in the ﬁnal showdown between the evil foe and our group of friends, an even more powerful, frightening and dangerous creature will make its appearance. Only the help of a stellar tutor can save the day, and it's time for big revelations!
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