What is the walking the boundaries about?

it is about a young boy who visits his great-grandfather ted and has to walk the boundries to own the land since its been through generation to generation throught his family.While walkig the boundries he meets a girl named Meg for a century ago and a boy named Wullamudulla from thousands of years in the past.They despite their differnces they discover that they are all on the same journey.

........and that walking the boundaries means more than following lines on a map.

THIS IS AN AMAZING STORY PLEASE READ AND ENJOY.

YOUR SINCERLY,JACKIE FRENCH LOVER.