King of the Cloud Forests by Michael Morpurgo

When Japan invades China, Ashley and Uncle Sung are forced to flee. It is a perilous journey across the Himalayas, and they struggle to survive. 
 
Then Ashley is captured.
 
Who are these strange creatures that revere him as their king?
 
Michael Morpurgo, the master storyteller.
 
Suitable for ages 11-teen