Emma Otheguy has 3 audiobooks on Listento.it, narrated by 4 narrators. The most-rated is The Madre de Aguas of Cuba.

This is a special, unique fantasy story about fairies dancing around a suburban neighborhood on magical summer nights.
©2015 Highlights for Children, Inc. (P)2015 Highlights for Children, Inc.

From the bustling streets of New York City to the cobblestones of Seville and the silver mines high in the Andes Mountains of Bolivia, Carmen is off on another quest to stop VILE in this heart-pounding caper full of twists and turns! For centuries, the magnificent Throne of Felipe has stood with two empty spaces beside its famous silver arrow - spaces where the silver castle and lion should have been. And now, with the recent discovery of the silver castle within a secret vault in Seville, Spain, the hunt is on for the third silver icon. With all three pieces in the place, the throne will be enormously valuable - making it a hot item on VILE's radar. Now it's up to Carmen and crew to find the silver lion before VILE does, and protect the throne from winding up in the wrong hands.
©2020 Houghton Mifflin Harcourt IP LLC. (P)2020 Tantor

Critically acclaimed author Emma Otheguy joins Newbery Honor-winning Adam Gidwitz as coauthor of the newest adventure in the NYT best-selling Unicorn Rescue Society series as the kids travel to Cuba to help the legendary Madre de aguas. In Cuba, it is believed that a mysterious water serpent - the Madre de aguas - is responsible for providing and protecting the fresh water of the island. But the serpent is missing, and a drought has gripped the island. Uchenna, Elliot, and Professor Fauna fly to Cuba and endeavor to rescue the Madre de aguas. Unfortunately, it tries to kill them. Meanwhile, the Schmoke Brothers' goons are driving around Havana, dumping pink sludge into the sewers. What is going on? Can Elliot and Uchenna end the drought? Stop the Schmokes? Or will the creature they are trying to save just eat them instead?
©2020 Adam Gidwitz, Emma Otheguy (P)2020 Listening Library