SCP-017 is to be kept in a specialized chamber inside the Moderate Containment Zone at Paragon Research Institute. The containment must contain 4 functional floodlights that must be maintained and turned on at all times.
SCP-017 is to be constantly exposed to light from every angle. Personnel assigned to the SCP-017 control room are to monitor the functionality of the spotlights and the emergency generator system and call for maintenance immediately upon knowledge of a burnt-out lamp or an issue with the generator.
SCP-017 is a humanoid figure approximately 80 centimeters in height, anatomically similar to a small child, but with no discernible identifying features. SCP-017 seems to be composed of a shadowy, smoke-like shroud. No attempt to find any object beneath the shroud has been successful, but the possibility has not been ruled out.
SCP-017's reaction to shadows cast upon it is immediate and swift. SCP-017 leaps at the object casting the shadow and completely encloses it in its shroud, whereupon it returns to its normal size, leaving no trace of the object behind.
The subject has been noted to have two phases:
Dormant Phase
SCP-017 has a short stature with no humanoid features;
SCP-017 consists of a floating dark gas-like state which is labeled as "Void Fluid";
The subject cannot speak, having low intelligence, and only concerned with avoiding light;
Active Phase
SCP-017 has a taller height with basic humanoid features -- white, hollow eyes and the reminiscent shape of a human body; and
SCP-017 can speak and conduct basic abilities; however, he has the intelligence of a shy, juvenile child.
SCP-017 can be found to be bored at times and finds interest in small children's toys.
SCP-017 can be found easy to manipulate; however, unmet promises can come with consequences.
The subject highly prefers to remain in darkness or shadows of any object, straying away from any light sources. When SCP-017 is considered hostile, the subject will have red eyes and unable to be negotiated with.
SCP-017 absorbs people to gain "darkness," resulting in transforming into its active state. In order to revert its state, SCP-017 must be exposed to light for a period of time. SCP-017 has several abilities that it can use;
Consume
SCP-017 can consume a victim in its dormant state to transform into its active state.
Shadow Lacerations
SCP-017 can harm others with multiple lacerations, scratches, and scarring of tissue.
Vanish
SCP-017 can vanish for a period of time, allowing it to escape from encounters, high concentrations of light, or to get around undetected.
Fog of War
SCP-017 can send out an anomalous smoke screen that removes an individual's visibility and leaves one in a sense of paranoia. The subject uses this ability to escape attacks or set up ambushes.
Child's Scream V1
SCP-017 emits an anomalous force that knocks back an individual, leaving them incapacitated for roughly 15 seconds. The radius of this ability is arguably 300 studs long.
Child's Scream V2
SCP-017 emits a high-pitched scream, able to break glass and disrupt electrical equipment such as lights.