Speaker for the Dead

Identify the setting or settings within Speaker for the Dead. How does Card establish and distinguish the time and physical settings? How does the setting contribute to the text?

Compare and contrast Trondheim and Lusitania. How do their climates and environments differ? How do their cultures differ? What makes Lusitania a suitable location for the restoration of the hive queen, while Trondheim is not?

The main character, Ender, goes by multiple names and obscures his true identity. Why does he hide his primary identity, Ender? Why does he hide the fact that he is the original Speaker for the Dead and the author of The Hive Queen and the Hegemon?