Sonic Periscope

Sonic Periscope

Locations

• Diessa Plateau
  (Ascalon)
  
• The Battle for Cragstead
  (Hoelbrak, Cragstead)

Interact

No

Destructible

Yes

Other images

Locations in Diessa Plateau.

Sonic Periscopes are Molten Alliance spying devices found around Diessa Plateau, eavesdropping on anyone passing by. They combine sonic technology and flame magic for their defenses, and when destroyed, the wreckage contains an Audio Log which can be turned in to Agent Brandubh. One also makes an appearance during The Battle for Cragstead.

Locations

Ascalon

• Diessa Plateau
  • Freewain Pastures
  • Gram Hills
  • Manbane's Outcrop
  • Nemus Groves (x2)
  • Rancher's Wash (x2)
  • Sanctum Way
  • Town of Nolan
  • Village of Butcher's Block

Historical locations

During the original release, ten Sonic Periscopes each could also be found in the following zones:

Ascalon

• Plains of Ashford
  • Agnos Gorge
  • Ascalon Basin
  • Cadem Forest (x2)
  • Charr's Triumph
  • Gunbreach Hills
  • Lake Adorea
  • Old Duke's Estate
  • The Toppled Wall
  • Victor's Presidium

• Iron Marches
  • Champion's Shield (x2)
  • Gladefall Run
  • Ironhead Lake
  • Lake Carnifex
  • Monger's Sink (x2)
  • Southshore Wastes
  • The Granite Front
  • Viper's Run

Shiverpeak Mountains

• Wayfarer Foothills
  • Frusenfell Creek
  • Halvaunt Snowfield (x2)
  • Hunter's Lake
  • Outcast's Cleft
  • Snowlord's Gate
  • Svanir's Dome
  • Taigan Groves
  • The Icesteppes (x2)
• Snowden Drifts
  • Dragon's Rising
  • Griffonfall
  • Hrothgar's Pass
  • Hunter's Pitfalls
  • Isenfall Lake
  • Lornar's Gate
  • Ossencrest Climb
  • Reaver's Dale
  • The Frozen Sweeps
  • Vitpeln Hills

Gallery

• 

  Historical locations in Wayfarer Foothills.

• 

  Historical locations in Snowden Drifts.

• 

  Historical locations in Plains of Ashford.

• 

  Historical locations in Iron Marches.

Story involvement

Living World Season 1

• Episode 1: Flame and Frost
  • The Battle for Cragstead
  • Alliance Investigation

Combat abilities

Behavior

• Applies  Eavesdroppers to nearby players and NPCs. (open world variant only)

Skills

• Unknown skill name — Fires a sonic blast every 5 seconds, causing  Knockback in areas above level 15; after 5 blasts, it pauses for 15 seconds.

Related achievements

• Flame and Frost: Against the Alliance — Stabilize Diessa Plateau against the Molten Alliance by completing events and returning audio logs to Agent Brandubh. Molten Alliance events award extra progress. (5)
• Flame and Frost: Against the Alliance 2 — Stabilize Diessa Plateau against the Molten Alliance by completing events and returning audio logs to Agent Brandubh. Molten Alliance events award extra progress. (5)
• Flame and Frost: Refugee Volunteer — Assist the refugees 75 times. (4)

Notes

• Only three of the periscopes per zone had the Defeat Molten Alliance forces in the area event, attached to them.
• The Sonic Periscope Wreckage remains until the periscope respawns, after approximately five minutes. During that time, the wreckage can be looted by anyone, however, each one will only produce one one audio log each day.

Trivia

• Sonic Periscopes were reintroduced to Diessa Plateau with the Living World Season 1: Flame and Frost Update on April 19, 2022.
• After the concluding chapter of the original Flame and Frost, there were still several periscopes in the world, but most of them were "dormant" and did not attack NPCs or players. Some, like the one near Angvar's Trove, left nearby waypoints contested. This was fixed in a subsequent update.