Ode to the Survivors. Seventh Hall Chronicles, #2

Death is no obstacle.Dorain Ironstrike's icy demeanor has thawed with the winter snows. Despite the losses, the survivors of Seventh Hall still survive, even though they still haven't discovered the secrets of the mountain. Now new arrivals burden the budding colony, and it turns out not all the migrants see things the same way. Their future hangs on the edge, teetering between survival and failure.
But there are forces at play that want more than their lives. They want them to serve in death.