SCP-025-FR

SCP-025-FR, or Deadly Silence (Silence de Mort in French), is an Euclid-level SCP in the French Branch of SCP Foundation, with a yellow-colored threat level. It is also an upcoming SCP in SCP: Containment Breach Unity Edition that will be added in an as of yet unannounced update.

Description
SCP-025-FR is believed to be a parent species of the Arthropleura, measures five meters long, and possesses the ability to ‘absorb’ sound waves around it. SCP-025-FR is also able to emit these sound waves to protect itself when threatened; these waves function similarly to an LRAD at 162dB, and have been shown to stun.

When SCP-025-FR is hunting, it digs tunnels, detecting its target by emitting sound waves. Once close to its prey, the entity absorbs all surrounding sounds it and its prey are causing and, within a few milliseconds before attacking, will emit a sound wave that will paralyze the target for a range of two to four seconds.

Once out of its tunnel system, SCP-025-FR will bite its prey with its outer mandibles, injecting toxin to paralyze and kill the target by a total stop of cardiac functions, before dragging it into the tunnel network to consume them safely.

SCP-025-FR is highly receptive to every form of high-frequency noise, and is attracted to them. As long as these sources are active, SCP-025-FR will try to find them, ignoring everything else, even potential prey.

Special Containment Procedure
The species of SCP-025-FR is contained within a 50 meters long, 50 meters wide and 10 meters high vivarium equipped with a hatch opening on the ceiling of the vivarium and an armored entrance door. The walls of the vivarium must be soundproofed.

The vivarium must also be equipped with two ultrasound emitters, one of which is an emergency one, located one end to the other of the room, on the sides where the door is not located.

In SCP: Containment Breach Unity Edition
SCP-025-FR is set to appear in Unity's remake edition of SCP: Containment Breach and will be one of the few non-English SCP to be introduced alongside SCP-080-FR.