The Curse of Oak Island Season 12 Episode 13: Detects Vibrations from Steel Caissons in Money Pit
The Curse of Oak Island Season 12, Episode 13: A Game-Changing Discovery?
Digging Deeper into The Money Pit
Episode 13 of The Curse of Oak Island takes the search for the legendary treasure to new depths—literally. The Lagina brothers and their team launched an ambitious excavation of The Money Pit, deploying a massive 7-foot-wide steel casing in an attempt to finally reach the fabled Chapel Vault. This vault, first reported in 1897 by Frederick Blair and driller William Chappell at a depth of 153 feet, has long been rumored to contain gold, historical artifacts, or crucial clues about Oak Island’s greatest mystery.
The excavation started strong, with promising finds at various depths:
- 87 feet: The team struck wood with axe or adze marks, indicating it could be part of an old underground structure.
- 91 feet: A massive wrought iron spike was unearthed, possibly from an early treasure-hunting expedition or even the original Money Pit defenses.
As the “True Believer” casing continued its descent, anticipation grew over what lay deeper underground.

A Stunning Discovery on Lot 5
While the Money Pit excavation progressed, an unexpected discovery on Lot 5 stole the spotlight. Jack Begley, archaeologist Fiona Steel, and assistant Todd Langth unearthed a sparkling gemstone-like artifact. At first, excitement soared—it looked like a diamond. However, after lab analysis by archaeologist Laird Niven and archaeometallurgist Emma Culligan, the truth emerged:
- The gemstone was a high-content paste jewel, an artificial gemstone popular in 18th-century France.
- The craftsmanship and style suggested a connection to the 1746 expedition of French Admiral Duc d’Anville, who is rumored to have buried treasure in Nova Scotia.
While not a real diamond, the find adds to growing evidence that French naval officers may have hidden treasure on Oak Island centuries ago.
New Wooden Structure Found in the Swamp
Another major revelation came from the swamp, where Rick Lagina, Alex Lagina, and Dr. Ian Spooner investigated a newly exposed wooden structure at a depth of 3 feet, accompanied by stacked rocks.
Dr. Spooner’s analysis suggested that the structure was likely built for cargo transport, fueling long-running speculation that the swamp was artificially modified to conceal treasure. Could this be evidence of a hidden transportation route used to move treasure from ships to underground caches?
A Mysterious Iron Spike on Lot 1
A previously discovered hand-forged iron spike found on Lot 1 also drew renewed attention. Expert Carmen Legge dated it to the early-to-mid 1700s, theorizing that it might have been used to anchor a boulder in place—possibly part of a larger treasure-marking system.
However, Emma Culligan disagreed, suggesting the artifact could date to the late 1700s. This small but significant debate highlights the challenges of interpreting Oak Island’s relics and their potential connection to the treasure.
Metal Fragment Found in Money Pit Spoils
As the casing continued to drill deeper, a square metal fragment was recovered during wash plant processing. The artifact showed signs of advanced craftsmanship, but its purpose and age remain unclear. Could it be part of:
- A treasure chest or vault?
- A defensive mechanism inside the Chapel Vault?
- Or just debris from past treasure-hunting expeditions?
Further analysis will be critical in determining its significance.

Are They Finally Close to the Chapel Vault?
The discoveries in Episode 13 suggest that the team may be closer than ever to uncovering the elusive Chapel Vault. However, Oak Island’s past is filled with false leads, flood tunnels, and collapsed structures that have frustrated treasure hunters for over two centuries.
Will the team finally break the curse and uncover the legendary treasure, or will this season end with yet another mystery? Fans eagerly await the next chapter in this thrilling expedition.








