The atmospheric world of Lies of P is filled with tragic characters whose stories expand the rich lore of Krat. Among these individuals is Test Subject 826, a unique NPC who can read the memories embedded within Ergo. Tracking down this character and fulfilling his storyline rewards players with rare items and vital completionist cosmetics.

Finding the Initial Location in Arche Abbey

Players will first encounter Test Subject 826 during the late-game exploration of Chapter 11. He is located deep within the Arche Abbey Outer Wall area, specifically situated near the bottom of a long ladder inside a large shortcut corridor. This mechanical passage ultimately serves to connect the Outer Wall Stargazer directly with the upper levels of the structure.

Reaching this area requires enduring tough combat encounters against powerful Carcass enemies guarding the chapel. Navigating these perilous walkways carefully ensures you can safely interact with the subject without getting overwhelmed. Initiating conversation with him at this specific point is the mandatory prerequisite to advance his narrative arc.

Relocating to Rosa Isabelle Street

After you successfully defeat Laxasia the Complete, Test Subject 826 will escape his confinement and alter his location. He transitions from the dreary abbey structures to a highly familiar urban landscape. You can find him standing peacefully on the large bridge overlooking the scenic Rosa Isabelle Street area.

It is important to complete your dialogue with him at the abbey before attempting to search the city streets. If you bypass his initial meeting, he will fail to manifest in the secondary location during your playthrough. Speaking with him on the bridge transitions his role from a simple survivor into a specialized endgame merchant.

Unlocking Unique Merchant Rewards

Once settled on the bridge, the liberated subject opens up an exclusive inventory shop for the protagonist. Players can purchase high-tier equipment upgrades and unique cosmetic items that are unavailable anywhere else in Krat. Among these valuable rewards are rare weapon components and specialized armor pieces designed to boost your defense.

In addition to physical equipment, pursuing this questline rewards players with distinct emotional gestures. Completing his final dialogue sequence grants the Happy gesture, which is essential for maximizing your humanity stats. Collecting these various rewards allows players to fully optimize their loadouts before entering the final boss arenas.