ISBN-13: 9781519674821 / Angielski / Miękka / 2015 / 304 str.
After discovering a mysterious radio signal, Luke and his sister, Ada, brave the deadly environment of the scorching desert, leaving the only home they've ever known, for a chance of a better life. Will they find the great, lush valley far beyond the mountains to the north, or will the journey prove to be their last?