In the vast world of Fallout 76, the quest "Key to the Past" is a pivotal part of the Raider faction storyline. This quest involves gathering key fragments to unlock a treasure cache, but it also delves into the story of Rosalynn Jeffries, a significant character connected to the Raiders. Here's a detailed look at how to complete the quest and the role Rosalynn plays in it.

Starting the Quest
To begin "Key to the Past," players must first complete the preceding quests "Signal Strength" and "Flavors of Mayhem," which are part of the Raider faction's storyline. Once these are completed, Rose will initiate the "Key to the Past" quest at the Top of the World building, located east of Flathills.
Gathering Key Fragments
The quest requires collecting five key fragments, each associated with a different group:
Blackwater Bandits' Key Fragment: Found in Blackwater Mine. Players must navigate through the mine, dealing with Mole Miners and Ghouls, to find Freddie Lang, who has become a Glowing One. Killing him yields the first fragment.
Trappers' Key Fragment: This involves visiting the Trappers' Camp and then heading to Huntersville. The fragment is found on Walter Griswold's corpse after a battle with Super Mutants.
Diehards' Key Fragment: The quest leads to Sunnytop Ski Lanes and Vincent Fried's Terminal. Players must listen to Margie's Holotape and find the Admin Password at the Palace of the Winding Path. However, the actual Diehards' fragment is not directly obtained here; instead, the Gourmands' note at Bolton Greens points to the Wendigo Cave, where the Gourmands' fragment is found on a Wendigo's corpse.
Gourmands' Key Fragment: As mentioned, this is obtained from a Wendigo in the Wendigo Cave.
Cutthroats' Key Fragment: Held by David Thorpe, found at Big Fred's BBQ Shack. Defeating him yields the final fragment.
In Fallout 76, completing quests like "Key to the Past" can be highly rewarding, not just in terms of lore and storyline progression, but also in gaining valuable resources such as Fallout 76 caps. These caps can be used to purchase essential items from vendors, boosting your survival chances in the post-apocalyptic world of Appalachia. The quest itself is a testament to the game's rich narrative, intertwining the search for Rosalynn Jeffries with the exploration and combat dynamics that make Fallout 76 so engaging.
The Role of Rosalynn Jeffries
After collecting all the key fragments and returning them to Rose, she will ask for an encryption program that belonged to Rosalynn Jeffries. Rosalynn, nicknamed "Rose" by her boyfriend David Thorpe, was a raider and the second-in-command of the Cutthroats. The quest now shifts to finding information about Rosalynn at the Charleston Capitol Building, specifically in the Justice Building, where players must navigate through hostile enemies to retrieve her Master Key Holotape.
"Key to the Past" is a challenging quest that not only tests players' combat skills but also delves into the lore of Appalachia's raiders. The search for Rosalynn Jeffries adds a personal touch to the story, highlighting the complexities of the Raider faction and its characters. Completing this quest rewards players with valuable items and progresses the Raider storyline, making it a crucial part of the Fallout 76 experience.