Narnia

Narnia Book 1: The Magicians Nephey
Chapter 2

Uncle Andrew’s grandmother gave him a little box and instructed him to destroy the box but he failed to do so. The box is an Antlantean from Atlantis and contains sand from another world. He used the sand to create the yellow ring which brings you to another world. Yellow ring brings you to another world and Green ring brings you back. Uncle Andrew told Diggory that he is the only one who can bring Polly back. Left with no choice, Diggory wore the yellow ring and brought two green rings.