Petra:

She never gives up on anything. She sets her mind to something and right now that something is beating the buggers.

Petra is a cadet from the salamander army. She is a sharp shooter and a hard worker, very strategic on the zero G, battle room and a caring person. She becomes one of Enders best friends on the base tho he has not many. She helps him train from being pulled from the group of "launchies" as their called, strait up to being a member of a army.

She's a very out going girl, she strategises before going into the zero G battle rooms. She looks out for ender and helps him become a cadet of the salamander army so he doesn't get behind on formations and tactics.