TL;DR
- Eternity is a Mystery side quest requiring two Lymbic Rods found in Vyssa Hills
- Complete Watcher’s Nest Puzzle first for Lymbic Rod Grief Z in the crypt
- Progress through Lethe National Library and mines to obtain Lymbic Rod Grief V
- Use both rods at the Lymbic Door near ruins for completion
- Plan 45-60 minutes for the full quest chain with proper preparation
GameSpot may receive revenue from affiliate and advertising partnerships for sharing this content and from purchases through links.
Finding yourself stuck on the Hell Is Us Eternity quest? This intricate mystery presents players with deliberately obscure clues that can easily lead to confusion. When you discover a particular artifact within Vyssa Hills, the accompanying instructions remain intentionally vague, leaving many unsure about subsequent actions. The challenge escalates as you must locate multiple specialized items simply to unlock a concealed chamber. Fortunately, our comprehensive breakdown provides all essential guidance to navigate this complex undertaking successfully.
Eternity represents a Mystery-category side mission primarily solvable within Vyssa Hills territory. However, certain essential components and contextual clues connect directly to an additional zone: Senedra Forest. Understanding this geographical relationship proves crucial for efficient progression.
Your primary objective involves accessing the Lymbic Door situated within the elevated terrain adjacent to ancient ruins and military vehicle wreckage, as visually indicated in the accompanying reference image. Our strategic approach addresses both core components systematically.
Before initiating the Eternity quest sequence in Hell Is Us, you’ll naturally progress to the Vyssa Hills region. This area hosts the essential Watcher’s Nest Puzzle that serves as your initial major obstacle. Within the subterranean crypt beneath the operational headquarters facility, you can acquire Lymbic Rod Grief Z after solving the environmental puzzle.

Pro Tip: The Watcher’s Nest Puzzle typically requires interacting with three hidden switches in specific sequence. Look for subtle environmental cues like differently colored moss patterns or unusual rock formations that indicate interaction points. Completing this puzzle efficiently saves approximately 15 minutes of backtracking.
The complementary Lymbic Rod also resides within Vyssa Hills boundaries, though accessing it demands substantial campaign advancement. Here’s the detailed progression pathway:


Common Mistake: Many players attempt the mine exploration before acquiring the Twin-Headed Serpent relic, wasting 20-30 minutes on inaccessible routes. Always verify you have completed the Library puzzle first.
With both Lymbic Rods secured—Grief Z from the Watcher’s Nest and Grief V from the mines—return to the Lymbic Door location in the hilltop area. The activation sequence requires inserting the rods in specific orientation patterns, typically matching symbolic indicators near the door frame.

Optimization Strategy: Advanced players can sequence-break by collecting both rods before returning to the Lymbic Door, reducing completion time by approximately 25%. This approach works particularly well if you’ve previously completed the Library puzzle in another playthrough.
Upon successful door activation, you’ll gain access to the hidden chamber containing valuable artifacts, character upgrades, and narrative revelations that expand the Hell Is Us storyline. The Eternity quest completion typically rewards players with unique equipment unavailable through other means.

Mechanics Insight: The Lymbic Door system represents the game’s deeper puzzle mechanics that reward observational skills and pattern recognition. Mastering these systems proves invaluable for subsequent challenging content throughout your gameplay journey.
Action Checklist
- Complete Watcher’s Nest Puzzle in Vyssa Hills crypt to obtain Lymbic Rod Grief Z
- Solve Lethe National Library environmental puzzle for Twin-Headed Serpent relic
- Use relic to open Serpent Door and acquire Mine Key
- Explore mine depths to find Vigil corpse and collect Lymbic Rod Grief V
- Return to Lymbic Door near ruins and activate with both rods
No reproduction without permission:SeeYouSoon Game Club » How To Complete The Eternity Quest In Hell Is Us Complete guide to solving the Eternity quest with Lymbic Rod locations and puzzle strategies
