Simplify the following text for a Grade 6 native English-speaking person.
Original: Zuko 's tracker , June , is unable to locate Aang , but he is reunited with his uncle , Iroh , who reconcile with each other after Zuko 's betrayal in Ba Sing Se .
Simplified: Zuko 's tracker , June , is unable to locate Aang , but does find Zuko 's uncle , Iroh .