Watch the Sky by Kirsten Hubbard

The signs are everywhere, Jory's stepfather, Caleb, says.Red leaves in the springtime. Pages torn from a library book. All the fish in the aquarium facing the same way. A cracked egg with twin yolks. Everywhere and anywhere. And because of them Jory's life is far from ordinary. He must follow a very specific set of rules: don't trust anyone outside the family, have your works at the ready just in case, and always, always watch out for the signs. The end is coming, and they must be prepared.

School is Jory's only escape from Caleb's tight grasp, and with the help of new friends Jory begins to explore a world beyond his family's farm. As Jory's friendships grow, Caleb notifies Jory's mother and siblings that the time has come for final preparations.

They begin an exhausting schedule digging a mysterious tunnel in anticipation of the disaster. But as the hold gets deeper, so does the family's doubt about whether Caleb's prophecy is true. When the stark reality of his stepfather's plans becomes clear, Jory must choose between living his own life or following Caleb, shutting his eyes to the bright world he's just begun to see.