Will they find the lost treasure before time runs out? A gripping adventure about a desperate race through the wastelands of future London to find a relic of extraordinary power. For Cass and Wilbur, life as scavengers is all they've ever known — rummaging the ruins of London in search of a precious, powerful relic no one, not even their new Russian masters, has ever seen. But when Erin and Peyto, two strangers from a faraway place, show up and claim they hold the key to locating the mysterious missing artifact, the treasure hunt takes on a lethal urgency. If the kids don't find the crucial object in six days, their world will come crashing to an end!