Set in the lower Andes, this is book 4 in a series of ten books. The Kits help out an injured Condor and are rewarded with his friendship. The series starts off with two Fancy Rats (sisters Simore and Agatha) wanting to leave their cage and go on an adventure. They meet two Chinchillas (Mo and Jose) by chance and they take them on risky adventures around their forest. The Chinchillas show them the beauty of their domain as well as the risks. They are chased by a big black dog (Jake) as well as foxes. They make friends with a bird (Elaenia) that tries to keep them safe and on the right track. The series of books continues with additional characters and adventures introduced into the subsequent books. The adventures are continued with the Kits of Mo and Jose in book three. Agatha and Simore become doting aunts to them showing them love as well as discipline.