Arriving at Atherton train-station and leave on one of the four pathways. You know your way around here, go Dinkelspiel, Lloyden or one of the Fair Oak lanes. You have all seen it, "so you thought!"
Some people dissapear without stepping into their cars or on their bikes and no appearance of anyone at any of those 4 streets.
What is going on here!? Welcome to the secret passage! Look at the left of the stone entrance of Lloyden and you will notice something interesting. You have found the passage. Take a strawl on this hidden path between the houses.
When things get narrowed down, you have arrived at the treasure-site.