Amur is the home-country Kodi, Kai, Kristopher (and others) were born in. The country consists of ice and snow, spruce tree forests and mountains litter this land through and through. 

The first book of the trilogy starts in Amur, with Kristopher waking up Kodi to play a practical joke on Kai, but long story short they were trapped in thier cave stuck with nephilim.

Amur is the home of the wolf pack Aversky and thier leader Aquillo. The siblings' home pack.

If some of you have noticed, Amur is named after the famous endangered leapard, the Amur Leopard.