A brand-new adventure is ready to unfold as Uchenna, Elliot, and Professor Fauna fly to Havana to search for the Madre de Aguas. Is this missing creature responsible for the drought that has ravaged the island for months? And why are the Schmoke Brothers' goons driving around Havana, dumping pink sludge into the sewers? the Unicorn Rescue Society is ready to save the day-and hopefully not get eaten in the process!.