Middlemen: Alone

Book 2 of 3 in the Middlemen series by Elton Gahr. The first generation of Middlemen survived, if just barely and now their children must continue the struggle to carve out a place for the Middlemen who are still massively outnumber by two armies that only like the Middlemen a little more than the enemies they have been fighting since before time began. Survival means they must make friends with members of both of those races because in the end while one side may seem better than the other the Middlemen were created as a bridge between the two races. With the ability to choose which side of they wish to be like. The Middleman Saga is a generational story written so that each story is important but a reader can begin with any of the books without the previous novels. The actions taken in the previous series matter, but are backstory as their children step in to take their place.