Rare Treasure Found at Sea In Uncharted 4: A Thief's End Chapter 12 At Sea, Nathan Drake and Sam continue exploring the beautiful islands, caves, and hidden locations connected to Henry Avery's legendary pirate treasure. During their search, Nathan discovers a rare collectible treasure, the Persian Silver Pen Box, hidden among the ruins and forgotten secrets of the island. This valuable artifact rewards players who carefully explore every corner of the environment and showcases the rich treasure-hunting experience that makes Uncharted 4 so special. From breathtaking ocean views to hidden collectibles and pirate mysteries, every step of Nathan's journey is filled with adventure and discovery. The Persian Silver Pen Box is another unique treasure that adds to Nathan's growing collection and proves that exploration always pays off. Watch this short to see Nathan uncover yet another hidden relic during his hunt for Avery's lost fortune.