Simplify the following text for a Grade 7 native English-speaking person.
Original: The Green Eye of Zub was last located on the tenth planet and once the Eye is found , Zub has to return to the first planet to present the Eye of Zub to Emperor Zub .
Simplified: The Green Eye of Zub was located on the tenth planet and once the Eye is found , Zub has to return to the first planet to give the Eye of Zub to Emperor Zub .