Avalanche!

Twelve-year-old twins Ashley and Ryan are skiing with their parents in Wyoming's Grand Teton Mountains where there is a ground-shaking rumble.

Unstable snow rushes downhill and buries them in icy white.

It will take all of their knowledge and grit to survive.

With seventeen years of hands-on experience and training in remote areas, author and survival expert Terry Lynn Johnson creates on-the-edge-of-your-seat storytelling featuring the real skills that kids need to survive a disaster.