Item #: SCP-X

Object Class: Safe

Special Containment Procedures:

While not in testing, SCP-X is to be filled with sterile saline solution. Under no circumstances are any corpses with an intact cardiovascular system to be brought near SCP-X. All testing must first be approved by the on-site cardiologist (currently Dr. ████████ ).

Description:

SCP-X is an anomalous oak wood chest, and an anomalous heart within it.

SCP-X's anomalous properties are as follows:

When SCP-X is opened, it will always contain a living human heart, will be identical to the heart of the closest human being (See Test Log D27-X for more details). Animals, including higher order primates, are not affected.

Any actions or forces, except for gravity and related normal forces, acting upon a heart from SCP-X will also act on the heart that the instance represents (the subject's).

The state of the subject's heart will be reflected in the SCP-X heart, including heart rate, health, and any medical devices upon it.

The chest will slowly fill up with with liquid, usually blood , at a rate proportional to the rate at which the heart is beating. While the heart is inside the chest, the liquid will appear to exit from the aorta, although the effect does not cease while the heart is removed.

SCP-X hearts will continue to display their anomalous effects as long as the subject lives. If replaced into the chest, the heart will be replaced with one of the new nearest person. It is unknown whether the heart is transmuted or is replaced during this

SCP-X's anomalous effects do not occur while it is filled greater than 60% with a substance other than air or other atmospheric gases.

SCP-X was discovered within the ruins of [REDACTED], on ██/██/1945.

Addendum A:

+ Test Log DX (Abridged for length) - Close Log Test DX-A Subject: D-9958, male, age 26, average fitness

Procedure: D-9958 was asked to open SCP-X in an empty room. Dr. ████ was then asked to examine the heart that appeared.

Results: Dr. ████ reported that the SCP-X heart displayed no unusual properties, and was "in fine health." During Dr. ████'s examination, D-9958 reported discomfort in the chest area.

Notes: The blood that filled SCP-X was confirmed to be the same as that of D-9958. Test DX-D Subject: D-1482, female, age 55, average fitness. D-142 uses a pacemaker.

Procedure: D-1482 was instructed to open SCP-X, remove the heart, and give it to Dr. ████, who was in a seperate room.

Results: The heart produced was kept in the Site-39 biological lab for three months, until D-1482 was killed in an experiment with SCP-████. The heart of D-1482 and the duplicate were examined, and found to be identical. Test DX-E Subject: D-634, male, age 51, moderately overweight; and D-554, male, age 39, average fitness.

Procedure: D-554 was instructed to open SCP-X, and D-634 was instructed to stab the heart using a provided knife.

Results: Upon D-634 stabbing the heart, D-554 let out a scream, then collapsed. An autopsy revealed an internal stab wound, identical to the one on the related SCP-X heart.

Notes: The rate at which the blood level rose in SCP-X increased after the heart was stabbed. Test DX-I Subject: Corpse of D-554

Procedure: Using a robotic arm, SCP-X was opened remotely.

Results: The heart within SCP-X contained the same knife wound as before, but instead of blood, SCP-X started to fill with [REDACTED]

Notes: This only raises more troubling questions about [REDACTED]. In the mean time, no dead bodies are to be brought near SCP-X, under any circumstances. - Site Director ██████

Addendum B:

Request for SCP-X to be incorporated into the ACT-H program.

Status: Pending