Season 13 in brief
Season 13 of The Curse of Oak Island aired on History Channel from November 4, 2025 to May 5, 2026 across 25 episodes. The team's two stated aims were to reach the solution channel that had carried elevated gold and silver into the Money Pit area, and to extend the medieval case the previous season had begun to assemble. Both produced results, neither produced treasure.
Five seven-foot-diameter caissons were sunk in and around the Money Pit, labeled TPF, Karma-1, Peacock-1, MS-1, and MP-1. The shafts pushed past 210 feet, recovered sinking wood, iron, and chain from depths no previous searcher had reached, and confirmed elemental silver in the solution channel sediments through Dr. Ian Spooner's XRF analysis. None of the shafts recovered an object of value. The Peacock void identified by sonar at 148 feet, with underwater camera footage that Bob Brown of Prohawk Technology assessed as more than 90 percent likely to contain man-made objects, was not re-encountered in any of the boreholes drilled within feet of the original target.
On Lot 8, archaeologists Laird Niven and Fiona Steele exposed a hand-cut stone cradle beneath a 40,000-pound boulder, bound with binders that Emma Culligan dated to a window between the 1200s and the mid-1700s. The Lot 5 round foundation produced a sixth Roman coin of Claudius II and a folded copper talisman matching early medieval Templar practice. Carbon-14 testing on leather from the cobblestone swamp pathway returned a primary range of 1148 to 1216 AD. Italian archaeoastronomy professor Adriano Gaspani dated the Lot 5 round foundation to approximately 1236 AD. Researcher Charlotte Wheatley demonstrated that three French churches dedicated to Saint Radegund share orientations of approximately 292 degrees that project across the Atlantic in the general direction of Oak Island.
In the season's final stretch, Rick Lagina, Alex Lagina, Doug Crowell, Peter Fornetti, Emiliano Sacchetti, and Corjan Mol travelled to the Portuguese Azores, where archaeologist Tiago Rodrigues at the Angra do Heroísmo Museum authenticated three Oak Island artifacts as Portuguese: a stone shot from the Money Pit area, the Pitblado Tornês escudo, and Jack Begley's iron deck spike from the Lot 5 round foundation. Portuguese numismatist Alberto Silva narrowed the Pitblado coin's striking window to no later than 1371. In the season finale, Dr. Spooner reported that wood recovered from the 2024 Shaft 2A excavation returned the highest silver and third-highest gold readings recorded on the island, opening a methodological pivot toward indirect detection. Marty Lagina committed to extending the program. The full scientific synthesis is laid out in Oak Island S13: The Medieval Case.
