Floor 21 Series by Jason Luthor

As humanity lives out the remainder of its existence at the top of an isolated apartment tower, young Jackie dares to question Tower Authority and their ban on traveling into the tower's depths. Intelligent and unyielding, Jackie ventures into the shadows of the floors below... moreAs humanity lives out the remainder of its existence at the top of an isolated apartment tower, young Jackie dares to question Tower Authority and their ban on traveling into the tower's depths. Intelligent and unyielding, Jackie ventures into the shadows of the floors below. But will her strong will and refusal to be quiet—in a society whose greatest pride is hiding the past—bring understanding of how humanity became trapped in the tower she has always called home, or will it simply be her undoing? less

Humanity remains trapped at the top of an isolated apartment tower but now has one hope of escape. Jackie, now a member of mankind's final Scavenger team, readies herself to plunge into the depths below. Trained to fight, and helped by new friends who will stand at her side, Jackie takes part in the Tower's most ambitious undertaking yet - an attempt to find a way to ground level... moreHumanity remains trapped at the top of an isolated apartment tower but now has one hope of escape. Jackie, now a member of mankind's final Scavenger team, readies herself to plunge into the depths below. Trained to fight, and helped by new friends who will stand at her side, Jackie takes part in the Tower's most ambitious undertaking yet - an attempt to find a way to ground level. But with the disease known as the Creep growing stronger with every passing floor, will she be able to help lead her team to victory? Or will they fall victim to the same horror that has kept humanity imprisoned for centuries? less