Investigating the complex web of secrets in Martinaise requires sharp observation and a keen understanding of forensic trajectory in Disco Elysium. One of the most intriguing side tasks available to Detective Harry du Bois is figuring out the exact trajectory of the bullet that killed the hanged man. Successfully completing this task requires exploring key landmarks across the coastal district and reconstructing the crime scene through careful dialogue and skill checks.
Initiating the Trajectory Investigation
To unlock the quest to determine where the shot came from, players must first make significant progress with Titus Hardie and Klaasje. Interacting with the broken window in Klaasje's bedroom at the Whirling-in-Rags triggers a critical Visual Calculus check. Passing this check allows Harry to realize the shot could not have originated from the roof, unlocking three key trajectory locations across the map.
Analyzing Land's End and the Boardwalk
The investigation initially directs players toward the western peninsula and the coastal areas. Inspecting the grassy shores near Land's End provides the first potential firing angle, helping narrow down long-range trajectories. Later, when exploring the basement of the Feld Electrical building, players equipped with a flashlight can spot an orb revealing a secret window overlook along the boardwalk.
Reaching the Island for the Final Conclusion
The final site necessary to conclude the task takes players across the water to the abandoned Sea Fortress on the island. As you navigate the ruined structures during the game's late-game climax, exploring the eastern side reveals a dilapidated bunker containing a mattress. Interacting with this location confirms the sniper's true perch and successfully completes the investigation task.