Alex, after deciphering the riddle left by their grandfather on the tombstone, sets out in search of ruin number 750. While wandering through the ruins of Tikal, Alex stumbles upon what could be the location marked 750. Intrigued, they decide to enter and look for clues.
Once inside, Alex remembers the book their grandfather had brought along. While flipping through its pages, they lean on one of the large stones in the area. Unintentionally, they trigger a mechanism that opens a door leading underground.
