Machu Picchu

As they settled in, Atlas took out the key, studying it closely. He could feel the power emanating from it, and he knew that he had to be careful with it. Meredith watched him, her eyes full of curiosity.

"What do you think it unlocks?" she asked him.

Atlas shrugged. "I have no idea. But I'm sure that there are those who would kill to find out."

Meredith nodded, understanding the gravity of the situation. They needed to find out if the key would really unlock the location where the book is found, but they also needed to be careful.

Hours passed, and the group worked tirelessly, trying to decipher the clues that would lead them to the key's true purpose. They consulted ancient texts, brainstormed about the clues they have so far, listened to Austin's events before… but they couldn't able to get another clue.

How will they know where this key would work?