WARNING: This article contains spoilers for The Curse of Oak Island season 8 episode 12. Read at your own risk.

Brothers Rick and Marty Lagina will uncover another huge mystery in The Curse of Oak Island season 8 episode 13. The two, along with their team, found evidence and clues that there have been human activities in the mysterious island as early as the 1400s.

The Curse of Oak Island season 8 episode 13 picks up where episode 12 left off. The fellowship believes that they are close to finding the location of the Money Pit after uncovering significant items. Alex Lagina, in particular, thinks that he unearthed evidence that could change their journey.

Alex discovered a human shoe and a piece of glass, which suggests that there may have been human activities back in 1492. The team was delighted by this latest finding, and they're becoming more certain that the Money Pit is just around the corner.

The team will continue to find more clues to prove that they're nearing the valuable treasure in The Curse of Oak Island season 8 episode 13. All of them are determined to solve the mystery that's been plaguing historians, treasure hunters, and researchers since the 1790s.

Ever since the current installment premiered, the fellowship already found several clues that seemingly prove that the Money Pit is on the island. In the first episode, one of them dive into the murky depths and found a shiny item -- which they suspected gold.

However, it slipped through his fingers and plunged deeper into the water. Then, in episode 11, Gary Drayton believed he found gold, but it was later revealed that it's just gold paint. Their journey in finding real gold will continue in The Curse of Oak Island season 8 episode 13.

Aside from this, the fellowship also focuses on the swamp. They think the stone structure is actually a roadway, which might be connected to the sea and the location of the Money Pit. Everyone is eager to search for more clues because of their recent discoveries.

The Curse of Oak Island season 8 episode 13 airs on Tuesday, Feb. 2, on History Channel. The reality treasure hunting is also available to watch on the official website of the network. Moreover, it can be streamed through Philo Tv, Directv, Sling Tv, and Fubo Tv. Amazon Prime subscribers can buy the episodes, while all seven seasons are on Hulu.