Pulled Together - Wasteland, #3

The third and final book of the YA apocalyptic Wasteland trilogy. Time has become the collective's scarcest resource. Holed up in a location they can't hope to defend, and with precious few supplies, their very survival hinges on finding a defensible place to settle, somewhere they can risk using their limited store of seeds to grow more food. Valeria pounces on the chance to join one of the scouting teams tasked with finding a new home.
Reeling from the aftermath of her parents' actions and searching for answers, she's desperate to get out into the wasteland and discover who and what else is out there. Afraid the collective's recent upheaval will call his position into question once more, Alessandro is doing his best to blend in. But when the scouting teams begin bringing back information into which he alone can provide insight, information that may hold the key to finding a secure location for the collective, he has no choice but to draw attention to himself.
When a marauding group begins closing in on their borders, the collective is forced to reckon with losing their one and only edge. Whatever the cost, they must move before they're truly prepared or risk annihilation.