"The heroes of Cloud Cuckoo Land are children trying to figure out the world around them, and to survive. In the besieged city of Constantinople in 1453, in a public library in Lakeport, Idaho, today, and on a spaceship bound for a distant exoplanet decades from now, an ancient text provides solace and the most profound human connection to characters in peril. They all learn the story of Aethon, who longs to be turned into a bird so that he can fly...