Object Class: Keter Alias: With Many Voices Appearance: A sightless, red-skinned, quadrupedal lizard-like monster, 2.2m tall and weighing 250kg. Hunting Method: Lures prey by mimicking the voices of the people it has killed. Senses: Being blind, it tracks the location of its prey through sound and vibration instead of sight. Personality: Driven by destructive instincts and malice, possessing a temperament close to that of a wild beast. Features: It lacks a digestive system; if food remains undigested, it vomits red blood from its mouth.

Object Class: Euclid Alias: The "Shy Guy" Appearance: A hairless, extremely emaciated humanoid monster whose mouth can stretch up to 5 meters wide. Height: 2.23m. Features: Usually docile, but if someone looks at its face, it enters a state of extreme distress, screaming and going into a berserk rage. Danger: If a subject views its face—whether in person, in a photo, or on video—it will chase them to the ends of the earth and kill them, leaving no trace behind. History: Once fought SCP-682 for 27 hours; it lost for the first time and now flees whenever it sees 682.

Object Class: Keter Alias: The Gate Guardian Appearance: A massive humanoid entity with no eyes, nose, mouth, or ears, and no hair. It possesses numerous wings of light flaming from its back. Height: 320 meters. Weapon: Wields a sword as hot and dazzling as the sun; during combat, it obliterates any approaching target without a trace. Behavior: Stands motionless at a specific location (the entrance to the Garden of Eden, believed to be the intersection of the Tigris and Euphrates rivers), guarding the gate. Features: If a human approaches, it drives them away by projecting powerful mental commands like "Forget" or "Leave" into their mind.

Object Class: Keter Alias: Humans, Refuted Appearance: A hairless, humanoid entity with a distended stomach and a chicken-like face. It stands roughly 2.9 meters tall. Features: It reproduces by laying eggs that are extremely difficult to destroy. It is highly aggressive and will attack any human on sight. Danger: Its biological resilience and rapid reproduction make it a severe threat to human life.

Object Class: Keter Alias: Hard-to-Destroy Reptile Appearance: A massive, grotesquely shaped reptilian creature resembling a giant lizard or crocodile. Personality: Harbors extreme loathing and hatred for all living things (especially humans) and will rush to kill anything in its sight. Immortality: No matter how much its body is cut in half, burned, or dissolved in acid, it regenerates perfectly within minutes. It evolves its own body to adapt to the opponent's method of attack.

Object Class: Keter Alias: The Old Man Appearance: Resembles a heavily decomposed, rotting elderly man, with its entire body covered in a black, viscous substance. Abilities: Can instantaneously corrode and pass through any solid material it touches (walls, doors, etc.). It also freely enters and exits a warped pocket dimension. Hunting Method: Primarily attacks young humans (ages 10-25), wounding them before dragging them into its pocket dimension to enjoy torturing them cruelly.

Object Class: Euclid Alias: Plague Doctor Appearance: Wears the attire of a 15th-16th century European plague doctor (beak mask and black robes). The clothing is not external but is actually skin tissue integrated with its body. Purpose: Observes humans and becomes obsessed with "curing" (effectively killing and reanimating) those it deems infected by "The Pestilence." Abilities: Causes immediate death if its skin comes into contact with human skin.

Object Class: Safe Alias: The Tickle Monster Appearance: A large, squishy, orange slime-like entity weighing about 54kg. Personality: The kindest and most friendly entity in the Foundation. It feels deep affection for all living creatures. Abilities: Grants a powerful sense of happiness and euphoria to any creature that touches its surface. It wraps its slime body around people to tickle them; it can treat mental illnesses like depression or PTSD and even made SCP-682 laugh and feel happy.

Object Class: Euclid Alias: The Sculpture (Peanut) Appearance: A bizarre statue constructed from concrete and rebar. Weakness: If a person keeps their eyes open and looks at it directly, it cannot move at all. Aggression: If line of sight is broken for even a second, or if one blinks, it moves at unimaginable speeds—as if teleporting—to kill by snapping the victim's neck. Features: It constantly produces a mixture of blood and feces; the containment cell must be cleaned daily by a team of at least three people.

Object Class: Keter Alias: Possessive Mask Corrosive Leak: A highly corrosive black liquid constantly flows from the eyes and mouth of the mask, dissolving surrounding materials. Mental Contamination: Plants strong hallucinations and impulses in nearby people to tempt them into putting the mask on their face. Body Control (Possession): The moment someone puts on the mask, it renders them brain-dead, takes control of the body, and begins to dominate. It uses high intelligence and eloquence to manipulate and deceive people. Host Decay: The body wearing the mask rots rapidly due to the corrosive liquid; once the body completely collapses, the mask returns to a state of waiting for a new host.