“Tell me if it starts to hurt,” the dentist
says before reaching into your mouth with a pair of orthodontic pliers and starting
to pull your front teeth back into place. Evidently, your screams aren’t enough of
an indication of the extreme pain you feel because he doesn’t stop pulling. After what feels like hours of excruciating
oral surgery, you’re finally standing outside the dentist's office texting with a friend. “Come on, show me. It can’t be that bad,” reads the message
from your friend. You’re nervous to send her a picture though
since you have a small crush on the girl and you don’t want her to see you in this state. But after she asks you again you decide to
take a quick selfie and send it to her anyway. You snap a photo of your mangled mouth and
jaw. The mess of wires had to be hastily applied
to move your remaining crooked teeth back into place with globs of fast hardening epoxy
and the result looks like a low-budget horror movie prosthetic. You send the message and wait. You watch the dots appear that indicate she’s
writing a response, then watch as they disappear without a reply. You sadly slip the phone back into your pocket
and begin walking away. As you make your way home with your head hung
in shame you keep your mouth shut tight. You don’t want any passersby to see what
you’ve become. You decide to detour through the park to avoid
any people as much as possible and as you walk, you decide to stop at a picnic table
next to a small pond. You sit at the table and watch the ducks mill
about in the water. “They have it so lucky,” you think. “Ducks never have to worry about their teeth
getting knocked out by a baseball and leaving them looking like a monster.” The ducks suddenly all start moving away from
your side of the pond, eventually taking flight and leaving completely. You get the sense that they’re trying to
get away from something and you turn around, but there’s nothing behind you. “Oh, it must be me,” you think. But then you get the sense that there is something
behind you and turn again, still though, there’s nothing. It’s just you, the picnic table, and the
empty pond. You turn back to watch the still water but
you can’t shake the feeling that there’s someone behind you and turn again. “Hello? Is anyone there?” you ask but no one answers. You turn back to the pond and -
You scream in fright at the thing standing before you and fall back off of the picnic
table. You get up out of the dirt and you don’t
wait to stick around to see who or what this thing is. You start to run as fast as you can but you
immediately hear it chasing after you. Instinctually you take out your phone and
start trying to take pictures of whatever it is that’s behind you. You know no one will ever believe you and
you want some evidence of this, this… thing. You manage to snap off a couple of pictures
but you can hear the creature gaining on you. You scream as your mouth begins to ache. Perhaps running this soon after your surgery
is causing your damaged teeth to shift, and the pain is intense. It starts to feel like your mouth is full
of jagged rocks, but you can feel that it is your teeth pushing out and stabbing into
your mouth. You take one last picture before the creature
leaps on you, sending you both to the ground and your phone tumbling into the dirt. Early the next morning, a police perimeter
has been set up in the park. The detective arrives and walks past the traumatized
looking jogger who must have been the one that discovered the grisly scene. An officer guarding the site lifts up the
police tape so the detective can enter the crime scene that surrounds a body lying under
a white sheet. The detective asks the officer if they’ve
found anything yet and the office hands the detective a plastic bag containing a dirty
cellphone. The detective puts on a latex glove and removes
the phone from the bag. The screen is cracked but it still works. There’s numerous messages on the screen
that look like they’re from someone trying to apologize for not responding sooner, then
asking where the phone’s owner is and if they’re mad at her. The detective opens the phone’s camera app
and starts looking at the last photos that were taken. It’s a strange series of pictures. They seem to all be selfies that a young man
was taking as he ran through the park. It almost appears as though there’s a figure
behind him but it’s hard to tell. There’s a foggy white vignette on the pictures
that gets worse the further he looks, slowly closing in until the last photo is nothing
but a blurred milky white screen. The detective flips the phone over and looks
at the lens which he can see is completely covered in a hard white substance. The detective places the phone back in the
evidence bag and kneels down next to the body. The police officer turns away, he’s already
seen the victim and doesn’t need to again. The detective pulls down the sheet to reveal
a truly shocking sight. The boy’s mouth is a mess of teeth, far
far too many teeth. There are teeth growing out of every part
of his gums at horrible angles, filling his mouth and jutting out at painfully odd angles. Who could have done this? What could have done this? The local police department may not have had
any idea what the state of this victim meant, but the SCP Foundation did, because they had
seen the same occurrence dozens of times before. In fact, they had seen it happen so many times
that they had classified this anomalous entity as SCP-4910, but it had already earned a much
ominous nickname within the Foundation. It was known as... The Grinner. Very little is known about SCP-4910, and eyewitness
accounts of the creature are all extremely brief, due to those who have interacted with
it quickly succumbing to its effects. What is known is that SCP-4910 is a quadruped,
and appears to be made partially, or perhaps entirely, out of teeth. Those who encounter SCP-4910 quickly experience
its primary anomalous effect, which is that it causes the extremely rapid overproduction
of teeth in its victims’ mouths. Existing teeth will quickly increase in size,
protruding farther out of the gums than should be able, while new teeth will begin to sprout
from any available space in the mouth including the roof of the mouth and underneath the tongue. These new teeth will completely fill the mouth,
which almost immediately inhibits their ability to speak or vocalize at all. The creature will then use this opportunity
to attack and incapacitate the victim, before starting to feed. Further adding to the mystery of SCP-4910’s
appearance comes from the effect it has on any nearby recording equipment. Cameras and other devices that come within
SCP-4910’s proximity will have their critical components compromised by a sudden appearance
of a layer of dentin, which is the calcified material that partially makes up teeth. Interestingly, SCP-4910 seems to possess some
level of intelligence, as it appears able to differentiate between normal civilians,
who it hunts for sustenance, and members of organizations that seek to hunt down and contain
or harm it, which it uses for an even more nefarious purpose. While the exact mechanics are still unclear,
it seems as though SCP-4910 is able to “infect” certain anomalous organization members with
its ability, causing them to act as a vector for the effect, who then spread it to even
more victims. This effect is, of course, of great concern
to the Foundation, and containment protocols for infected victims have been hastily put
into place. Should a member of staff begin bearing a grin
with too many teeth, or multiple tooth-filled smiles, they are to be immediately immobilized
by any means necessary, though preferably with a firearm that allows one to keep an
appropriate distance and hopefully prevent any further spread of the effect. The infected individual is then to be doused
in a hydrochloric chemical compound that will reduce the afflicted to a pulp-like substance. Once this pulp is no longer animate, it can
be transferred to the closest incineration site for disposal. Should a member of personnel have an interaction
with SCP-4910 and feel that they were exposed to its anomalous effects, they may be saved
by taking immediate medical action. Oral surgery to remove the additional teeth
has been found to be effective when the procedure is undergone in the first one to two hours
following exposure, though the victim will suffer lifelong permanent physical issues
from the procedure. Once three hours have passed, the effect will
have spread to the rest of the body, with teeth appearing virtually anywhere. Unfortunately for the victim, should the infection
reach this point, pain management has been shown to be ineffective, and there is nothing
that can be done to alleviate their suffering save for termination. SCP-4910 remains at large and has been given
the Keter classification. Mobile Task Force Epsilon, codenamed “Tyrfing
Black” is the only MTF authorized to respond to sightings and they have been given permission
to engage the creature and utilize lethal force if necessary due to the danger this
anomaly presents specifically to the SCP Foundation. Now go and watch another entry from the files
of Dr. Bob, like SCP-745, the Headlights, for another predatory creature with a very
unique hunting method. And make sure you subscribe and turn on notifications,
so you don’t miss a single anomaly, as we delve further and further into the SCP Foundation’s
classified archives.