It contains some information about, and the possible location of the great Gummiscope. At one point, a young Duke Igthorn owned a copy of this book. Recalling the power of the Gummiscope, he sneaks into Dunwyn Castle and enters the ruins of his childhood home to recover the copy.
Cavin is suspicious about Duke Igthorn's interest in a children's book and decides to take his concerns to Zummi Gummi. Zummi is perplexed at first, and Gruffi denounces the book as useless, as some human wrote it. However, Grammi figures it is important if Igthorn would take a risk like infiltrating Dunwyn, and Cubbi reveals that he also owns a copy. Cubbi presents his intact book and the Gummies figure out how to locate the long-lost Gummiscope by Mount Sentinel.
- Although never explained, some of the book's pages mention a character named "Toadie"; a possible hint towards Igthorn later being responsible for naming his main henchman.