Corwin travels to Manaus, Brazil, to help capture and relocate a colony of tamarins.

Arthur can be a spirited ten-year old whose parents are away interested in work, whose eccentric grandfather has become missing for quite a while, and who lives together with his grandmother within a country house that, in 2 days, is going to be repossessed, torn down, and transformed into a block of flats unless Arthur s grandfather returns to sign some papers and pay off the family debt. Arthur discovers how the way to succeed is based on his own descent into the land in the Minimoys, creatures no larger than a tooth, whom his grandfather helped relocate for their garden. Somewhere and this includes is hidden a pile of rubies, too. Can Arthur be of stout heart and save your day? Romance beckons too, along with a villain lurks.