Vanish

Theresa is one of the remaining. Most of the worlds population has disappeared without a trace. Except for 100 people, 50 boys and 50 girls. Two for each state of America. And Theresa is one of those remaining.

Together with Ash, also one of the remaining, she has to find the rest and find out why everybody has disappeared. And what does Julie, Theresa's best friend, have to do with the disappearances? And what kind of relationship does Theresa have with Ash.