Darkest Before Dawn: Book 2 of The Chronicle of Benjamin Knight

They were too late. Despite everything that they'd sacrificed, everyone that they'd lost, they were still too late to stop the army from the north. Now, outnumbered and out gunned, the survivors from the Road Trains fight back against the force that has occupied their homeland, but Alexander seems to be one step ahead of them at every turn. If it's always darkest just before the dawn, what happens if the sun never rises?