Querry lives in an arid world of dust, and endless wandering. The remnants of Survival Colony 9, led by his father, constantly move across the stretching desert in search of water, food, and safety. But even bunkers can't protect them from the Skaldi - invisible creatures that inhabit human bodies, feeding on their strength and masquerading as the person until the body is only an empty skin, left behind to rot in the sun when another host is provided.
Querry is the only person to survive a Skaldi attack, six months previous. His body emerged unscathed, but his memory is gone. He can't remember his father, or the people of Survival Colony 9. Some of them are trustworthy, some aren't, and with no recollection of who is really his friend and who isn't, Querry doesn't know where to turn.
His survival of the attack means that he could be the key to the human race standing against the Skaldi - if only he could remember how he did it.