Plague by Michael Grant

Number Four in the Gone series by Michael Grant continues to follow the kids of the FAYZ, the area surrounded by a dome where kids are developing powers and animals are mutants. When the done appeared, everyone over the age of 15 disappeared. Just.. POOF. Anyways, I love this series, but I think I am getting ready for it to end. That sounds terrible doesn't it? But yes, even though I really enjoy them, I think its time for the dome to come down.