DW – Kliatt (starred review)
In this companion to Oppel's prize-winning fantasies about bats, Silverwing, Sunwing, and Firewing, he imagines what the origins of modern day bats might be. The setting is the early Paleocene epoch, 65 million years ago. Dinosaurs are dying out, and mammals are increasing in number. Small creatures called chiropters live in trees and glide like flying squirrels from branch to branch, but among them a mutant is born named Dusk, who has the ability to fly and to see in the dark. When catlike predators called felids arrive on their idyllic island, led by a vicious hunter named Carnassial, Dusk must guide his companions to safety in a new environment. Filled with adventures and characters both sympathetic and fearsome, this exciting fantasy convincingly brings to life a long-ago world at a time of rapid change
– Kliatt (starred review)