The Timer book 1- The Barmen Circle

When the timer goes off, the climate and the weather changes. And it sets off terrible and the most horrible storms. Five tribes must survive this land for their whole life, until it gets harder to live. Barmens start coming and killing them off. The war starts about food and supplies, and the timer still clicks in the sky.
The Marcats tribe are the most powerful of them all, they can kill anything with just the snap of their fingers.
So that's why they went into hiding at the Barmen Circle...