The Mystery Across The Secret Bridge (Greetings From Somewhere)

The Mystery Across The Secret Bridge (Greetings From Somewhere)  Vol. 7

Author : Harper Paris 

In peru, Ethan and Ella have gone horseback riding up mountains, hiked to a famous moon temple, and met animals called alpacas. Finally they've arrived at Machu Picchu, the "Lost City of the Incas." While the twins are exploring the ruins, they come across a secret bridge that leads them to a mysterious stone structure. What is it? Why haven't they heard about it before? And why does it seem to look like a snake, a puma, and a bird at the same time?

It is published by ;  Simon & Schuster