Gathering Force (#12): The Calling of the Grull (The Valley of Hope)

The Valley of Hope and The Calling of the Grull are a serialized series of novels that are delivered in monthly installments. Prime members with Kindles can borrow the monthly installments free.

The fate of the tribe lies in the hands of a few free tribesmen and a band of warriors from another clan who may or may not be willing to put their own lives on the line to save them.