Please note this Quest is in final trial mode and you are signing up for a test registration. You'll get the full experience but your score wont appear on the Leader Board.

In 1888, Greenbushes became the site of Western Australia’s first mining lease for tin. The discovery of rich tin lodes drew fortune seekers, built a bustling town, and sparked an industry that helped shape the region.

More than a century later, Greenbushes once again sits on the world stage — this time as the site of the world’s largest and most profitable lithium mine. But between the old tin rush and the modern lithium boom lies a lesser-known story: a mysterious core sample, known only as Sample 23, rumoured to contain a third, unknown element. Its location has been lost for over 100 years… until now.

Your Quest is to follow the trail of the lost core and uncover the truth: What really happened to Sample 23? Was it lost by accident, hidden deliberately, or stolen for something much bigger?

This is more than a walking tour; it's a race against rival sleuths. Collaborate with your team to pool your intellect, or compete individually for the top spot on the live leaderboard to claim ultimate bragging rights. Designed for your convenience, the adventure is self-guided. Play at your own pace, with subtle hints available from the app whenever you need a nudge.

Perfect for mystery enthusiasts, history buffs, and adventurous families, the Sample 23 mystery blends a treasure hunt's excitement with the thrill of a cold case finally cracked. The clues are active, the leaderboard is live, and the story is waiting. Download the app, gather your team, and experience the unforgettable "Aha!" moment when you crack the case. Your thrilling investigation into a century-old scandal begins now.

To complete the Quest simply buy your Quest Code. One code will allow you to play in solo mode or invite one other player on to your team so that you can share the Quest across both your devices and Quest together. If you would like to compete aganist your friends, you simply buy 1 code per team. (A team is 1 or 2 people). You'll recieve an eMail with a link to download the free Quest app and directions to begin your quest. 

You can complete your Quest at a time and date of your own choosing. The Quest Code will never expire. 

What are people saying about our Quests?

• "I really enjoyed the clues and the walk and will recommend it to others." - Kylie second on the Case of the Crimson Cider Leaderboard

• "I think it’s awesome! Ticks heaps of boxes. Its fun and engaging."

• "I really enjoy treasure hunts/geocaching, so I thought this was good fun!"

• "We really enjoyed doing the Quest - it was great fun!"

• "We have just finished - was such a great activity - Love the concept."

Please note this Quest is in final trial mode and you are signing up for a test registration. You'll get the full experience but your score wont appear on the Leader Board.


In 1888, Greenbushes became the site of Western Australia’s first mining lease for tin. The discovery of rich tin lodes drew fortune seekers, built a bustling town, and sparked an industry that helped shape the region.
More than a century later, Greenbushes once again sits on the world stage — this time as the site of the world’s largest and most profitable lithium mine. But between the old tin rush and the modern lithium boom lies a lesser-known story: a mysterious core sample, known only as Sample 23, rumoured to contain a third, unknown element. Its location has been lost for over 100 years… until now.
Your Quest is to follow the trail of the lost core and uncover the truth: What really happened to Sample 23? Was it lost by accident, hidden deliberately, or stolen for something much bigger?
This is more than a walking tour; it's a race against rival sleuths. Collaborate with your team to pool your intellect, or compete individually for the top spot on the live leaderboard to claim ultimate bragging rights. Designed for your convenience, the adventure is self-guided. Play at your own pace, with subtle hints available from the app whenever you need a nudge.
Perfect for mystery enthusiasts, history buffs, and adventurous families, the Sample 23 mystery blends a treasure hunt's excitement with the thrill of a cold case finally cracked. The clues are active, the leaderboard is live, and the story is waiting. Download the app, gather your team, and experience the unforgettable "Aha!" moment when you crack the case. Your thrilling investigation into a century-old scandal begins now.
To complete the Quest simply buy your Quest Code. One code will allow you to play in solo mode or invite one other player on to your team so that you can share the Quest across both your devices and Quest together. If you would like to compete aganist your friends, you simply buy 1 code per team. (A team is 1 or 2 people). You'll recieve an eMail with a link to download the free Quest app and directions to begin your quest.
You can complete your Quest at a time and date of your own choosing. The Quest Code will never expire.


What are people saying about our Quests?
" I really enjoyed the clues and the walk and will recommend it to others." - Kylie second on the Case of the Crimson Cider Leaderboard
"I think it’s awesome! Ticks heaps of boxes. Its fun and engaging."
"I really enjoy treasure hunts/geocaching, so I thought this was good fun!"
"We really enjoyed doing the Quest - it was great fun!"
"We have just finished - was such a great activity - Love the concept."