Adventures of Riley -Tigers in Terai by Amanda Lumry and Laura Hurwitz illustrated by Sarah McIntyre*

Riley's Uncle Max (a world-renowned biologist) asks him to join him in Nepal to search for and document the presence of tigers.  As Riley, Uncle Max, Aunt Martha and cousin Alice explore the Terai Arc, they discover all interesting creatures and enjoy some adventures.
My six year old does not prefer nonfiction but while I was reading it, he informed that he really liked it and wanted to read more from this series!
The authors mix a fun story with interesting facts that truly keep the reader engages.
Photographs are mixed in with the illustrations.  Fact boxes share more information about the animals Riley encounters.
Text features:  photographs, fact boxes, bold font, map, further information page which also includes a glossary, defining the bold face words throughout the main text
*Highly recommend.
Part of a series-Safari in South Africa, Project Panda, South Pole Penguins, Polar Bear Puzzle, and Dolphins in Danger